Please be gentle with your comments, I have been about 6 months without having played D/P, and most of the others I've been battling are in the same boat. Thus, I'm not incredibly familiar with the new Platinum metagame.
@ Leftovers
Impish | Sandstream
252 HP, 6 Atk, 252 Df
Earthquake
Ice Fang/Roar
Slack Off
Stealth Rock
My lead that gets the sandstorm up. A little birdie also told me about how getting SR out ASAP has become very important, so I vouched for that over Roar. The rest, as you can see, is standard.
EDIT: Roar to help against setups, but I'll wait to see other opinions on this.
@ Leftovers
Bold | Natural Cure
252 HP, 252 Df, 6 Sp Df
Seismic Toss
Softboiled
Aromatherapy
Thunder Wave/Counter
This is the starting point for this Blissey, though I realize I will probably need to go with Calm instead. Someone also told me that Blissey typically runs max df/max sp df nowadays, and pointed out that Calm only makes an 11-point drop in Defense, yet a 36-point boost in Sp Df with said EV spread. I like Thunder Wave as it helps me gain the upper hand if I end up in a Stall War, as well as crippling incoming sweepers, but I'm also considering trying out Counterbliss.
@ Leftovers
Bold | Levitate
252 HP, 252 Df, 6 Sp Df
Charge Beam
Ice Beam
Rest
Sleep Talk
I'm not sure how common mixape is nowadays, but I know back then it was a force to be reckoned with. This is my answer to it, while the other two walls don't handle it well at all. Rest/Talk is usually not my cup of tea, but it obviously beats using Moonlight in this situation, and is easier on the PP. Charge Beam is to help prevent pokes trying to set up while I'm asleep, though Modest might be necessary.
@ Choice Scarf
Mild | Flash Fire
14 Atk, 252 Sp Atk, 244 Spd
Explosion
Fire Blast
Dragon Pulse
Earth Power
Fire Blast over Flamethrower since I'm running specs. Pretty straightforwad; this is my answer to Magnezone and steels in general, and a Mamoswine revenge killer should the opportunity arise. It's also good to switch in since three pokes on the team are ice-weak, and it's my only real special sweeper.
@ Choice Scarf
Adamant | Levitate
Outrage
Earthquake
U-Turn
Stone Edge
I'm leaning toward Adamant, so Flygon can be bulky and capitalize on his good resistances and reasonable defenses, unless there is some big gap in my team that must be taken care of with FB. Principal physical sweeper, and essentially my "mini-Garchomp."
EDIT: For now, put Stone Edge > Fire Punch for Gyarados and Scarf > Band for revenge killing those fliers.
@ Toxic Orb
Adamant | Poison Heal
42 HP, 252 Atk, 216 Spd
Spore
Substitute
Seed Bomb
Focus Punch
First of all, I hate Jolly Breloom. The EVs are meant to outspeed Adamant/Max Spd Scizor so Breloom can Spore it first (I realize Scizor can Bullet Punch, but it can also X-Scissor for more damage, meaning there's a chance I will outspeed it. There's also Substitute). I usually run Stone Edge on Breloom to avoid being walled by fliers, but lately it's been working against me to not have Seed Bomb.
__________
As a side note, I lack a Spinner since I don't appear to desperately need one. I have 3 that resist SR and four immune to Tspikes, and for the other two that need assistance for poison, Blissey can heal it away.

Impish | Sandstream
252 HP, 6 Atk, 252 Df
Earthquake
Ice Fang/Roar
Slack Off
Stealth Rock
My lead that gets the sandstorm up. A little birdie also told me about how getting SR out ASAP has become very important, so I vouched for that over Roar. The rest, as you can see, is standard.
EDIT: Roar to help against setups, but I'll wait to see other opinions on this.

Bold | Natural Cure
252 HP, 252 Df, 6 Sp Df
Seismic Toss
Softboiled
Aromatherapy
Thunder Wave/Counter
This is the starting point for this Blissey, though I realize I will probably need to go with Calm instead. Someone also told me that Blissey typically runs max df/max sp df nowadays, and pointed out that Calm only makes an 11-point drop in Defense, yet a 36-point boost in Sp Df with said EV spread. I like Thunder Wave as it helps me gain the upper hand if I end up in a Stall War, as well as crippling incoming sweepers, but I'm also considering trying out Counterbliss.

Bold | Levitate
252 HP, 252 Df, 6 Sp Df
Charge Beam
Ice Beam
Rest
Sleep Talk
I'm not sure how common mixape is nowadays, but I know back then it was a force to be reckoned with. This is my answer to it, while the other two walls don't handle it well at all. Rest/Talk is usually not my cup of tea, but it obviously beats using Moonlight in this situation, and is easier on the PP. Charge Beam is to help prevent pokes trying to set up while I'm asleep, though Modest might be necessary.

Mild | Flash Fire
14 Atk, 252 Sp Atk, 244 Spd
Explosion
Fire Blast
Dragon Pulse
Earth Power
Fire Blast over Flamethrower since I'm running specs. Pretty straightforwad; this is my answer to Magnezone and steels in general, and a Mamoswine revenge killer should the opportunity arise. It's also good to switch in since three pokes on the team are ice-weak, and it's my only real special sweeper.

Adamant | Levitate
Outrage
Earthquake
U-Turn
Stone Edge
I'm leaning toward Adamant, so Flygon can be bulky and capitalize on his good resistances and reasonable defenses, unless there is some big gap in my team that must be taken care of with FB. Principal physical sweeper, and essentially my "mini-Garchomp."
EDIT: For now, put Stone Edge > Fire Punch for Gyarados and Scarf > Band for revenge killing those fliers.

Adamant | Poison Heal
42 HP, 252 Atk, 216 Spd
Spore
Substitute
Seed Bomb
Focus Punch
First of all, I hate Jolly Breloom. The EVs are meant to outspeed Adamant/Max Spd Scizor so Breloom can Spore it first (I realize Scizor can Bullet Punch, but it can also X-Scissor for more damage, meaning there's a chance I will outspeed it. There's also Substitute). I usually run Stone Edge on Breloom to avoid being walled by fliers, but lately it's been working against me to not have Seed Bomb.
__________
As a side note, I lack a Spinner since I don't appear to desperately need one. I have 3 that resist SR and four immune to Tspikes, and for the other two that need assistance for poison, Blissey can heal it away.