I'd specifically love to see a team that struggles with weather, so they use Abomasnow as an offensive Pokemon that can keep the opponent on their toes.  With a Choice Band or Life Orb, it has a great enough physical movepool to hit all other weather starters for super effective damage.  This is a role that methinks Abomasnow could play really well, but he seems to almost always be used on a Hail team or not at all.
On another note, one of the least loved sets of 
Dragonite is the 
Parashuffler set.  With the loss of Excadrill and Thundurus (and the downfall of Gliscor), this thing can cause a headache to so many teams.  As we all know, Dragonite is nearly impossible to OHKO at maximum health thanks to Multiscale, and this set abuses that directly.  If we picked Parashufflin' Dragonite, we could then model a team that fights well against paralyzed teams, which means tons of variety for us!  Perhaps Conkeldurr or Head Smash Rampardos could join his posse.  It's a greatly effective set that could really use some love AND makes a fantastic team player.  The Special Defense EVs allow it to not get plowed over by random HP Ice / Ice Beam, but some could easily be distributed to Defense.
Dragonite @ Leftovers
Nature: Careful
EVs: 252 HP / 252 SpD / 4 Spe
- Substitute
- Roost
- Thunder Wave
- Dragon Tail