Take what I say at your own discretion, but:
1) That bug where if you pick a pokemon that happens to have a long set, the page stretches still exists. Pick Ambipom, in say, the center box, you'll see the stretch happen. I assume its an easy fix, just add width: 33%; to the pokemon CSS. I prefer hardcoded numbers but since you didn't specify any hardcoded numbers for the table itself, might as well.
2) I don't like the gap between the left text junk and the right dropboxes, but so far the code looks fine. The only thing I can think of is changing margin: 0 to margin: 0px, or specifying a manual size for the cell.
3) I think it'd look nicer if "Moveset analysis" wasn't under moveset, but was listed as (Analysis) right next to Pokedex Entry (you need a different name for that. :P)
Using Firefox, btw.