Earth/Storm: Quicksand versus Snow Storm
Most ppl who post on the forums are good about slotting and IO'ing bonuses and thus have high Acc/To Hit bonuses. I'm no exception, but I still lead w/QS as much as possible for the -Def. Remember, just because you have a high accuracy, doesn't mean the rest of the team does. Also, there are enough debuffing mobs in the game where I always like having an auto hit Def debuff (unlike say Rad, which needs to hit first). It recharges and casts fast, has a nice area, and a good slow to boot. No way I'd ever skip QS.
Someone described how I feel about SS above as a luxury, i.e. nice to have, but optional. I currently skip SS on all my controllers and even my Cold defender, though I'm reconsidering that last. For stuff like witches and any flying/scattering mobs, SS is wonderful to have, but it doesn't happen nearly enough for me to want to devote a whole power to it, esp if I can ground them w/an immob.
An Offensive Guide to Ice Melee
An Offensive Guide to Ice Melee
Others might find more use out of it and who knows, you may love either or both. I like them, but not enough to sacrifice things like Tough/Weave which let me live longer and hence use controls that have, IMHO, a far more tangible effect on the battle.
@Mental Maden @Maden Mental
"....you are now tackle free for life."-ShoNuff