Haste Vs. Accuracy Endgame

Bleh... I'm hoping this isn't as dumb a question as I feel it is, but was talking with a friend about the pros and cons of haste builds vs. accuracy builds when dealing with endgame mobs (anything from Dynamis mobs to HNMs and then some).

I'm personally leaning towards Accuracy since the evasion of the mobs is usually higher and this way there are less WIFFS. My friend is all for as much Haste as you can stack and DEX/STR where you can't to balance out the misses.

Which is better? Or is there a medium where you stack Haste where you can and Acc where you can't?

I've been playing mage jobs much more lately so I'm not up to date on THF gear wants/needs. :(