I've got it with 2 Moves and it does really improve Archery/Gladiator. The Volleyball is indeed weak and the rest are indeed pretty good. In fact, only Volleyball let's the side down IMHO, the other 5 are good.
One thing I don't like about SC are the avatars. They just don't feel engaging for me and if anything err towards tyring to be non-cuddly (i.e. how the developer sees Mii's) and it just feels a bit off.
With both Wii and Move I do feel Move is a tad more accurate overall, but it's close. The main difference for me is that Move wand is actually much nicer to hold than Wiimote, although I still prefer the nunchuck and wish the Navi stick with Move was more like it.
Going forward I'm wondering if the lack of true Miis/Avatars inbuilt to the PS3 inteface and titles will make a difference. I certainly feel its a gap Sony should close. Having a consistent in-game avatar (at least for most titles) that links to the console just feels better to me. I really think Sony has missed that part of the equation, although this might be balanced out by the seeming push in non avatar related Move titles Sony is making.
If you really want to experience SC to the full you will need another controller IMHO. Playing Gladiator and actually moving your shield with one hand and sword with the other just feels so right. Archery also feels better with a proper draw of your arrow while holding the bow.
Try to be reasonable... its easier than you think...
