Just beat the elite 4; thought I would give my reviews on the pokemon I used:
Samurott - Solid. Never really let me down, great mixed offense and always has a solid stab through the game from shell blade to scald to surf. Coverage is good, and his priority move comes in SO useful on a team which doesn't have any other priority. Overall, very pleased.
Zebstrika - Nowhere near as bad as everyone gives her credit for. At this point in the game I run thunderbolt for spamming, wild charge for power. Nitro charge provides some good coverage up until the middle portion of the game. It's nice to have a pokemon you can rely on to outspeed stuff and hit pretty hard. Also her design and cry are badass.
Krookodile - Honestly this thing is amazing. Crunch with Bulldoze/Dig and Rock Slide is delicious, and Moxie is awesome in-game. Single handedly dealt with the last gym using neutral moves. His speed has never been an issue for me, as has been reported.
Zoroark - The CPU loves to do stupid stuff with illusion. Caitlin used Psychic on it and it made me happy. Even without illusion you get a really great, fast mixed sweeper with lots of tm access. Really looking forward to Nasty Plot and Night Daze. The most used member of my team, and at the highest level.
Rufflet - I understand why this is low tier. But I love him. Can't wait for Braviary, but this is a labour of love, I don't recommend it unless you really want him. He did 2hko Grimsley's Scrafty though, which shocked me. Shame the fighting elite 4 member's pokemon all have a rock move :/.
Chanderlure - Ridiculously powerful, and surprisingly good at taking special hits. As for previous discussion he isn't that difficult to raise up considering that end result, read: the highest non-uber special attack in the game. Also I love normal and fighting resistances, especially with two dark types. Looking forward to a stronger fire stab very much.
(Simisear - This little buddy got replaced by Chanderlure. He did well, but around the 7th badge he starts to really drag his ass; he doesn't have the special attack to be ok with Flame Burst as his best stab. Annoying defeat after annoying defeat I boxed him away and thanked him for his services, replacing him with the far more competitive Chanderlure. However early game this thing is pro. Between evolution and the 5th badge he is amazing, but it seems like everyone here likes to replace him after a while.)
Loving my team. Time for the endgame.