sizeup works great, i evaluated moom for only a very short period of time (their trial period is too short IMO).

i have been using sizeup for a long time now, started using it when moom wasn't all that powerful. i think nowadays i would go with moom and customize everything. on the other hand, sizeup does everything i need except for shrinking/growing a window and is extraordinarily stable.

disclaimer: i use Witch => I have nothing against Many Tricks.