Online isn't everything. It is usually funner than single player, but not always.
1. Zelda is pretty good, but it is overrated.
2. I didn't think RE4 was that good, and I have already played it on GC.
3. If it used the Wiimote I would probably buy it, but it isn't supposed to and if it doesn't I'm not getting it.
Mario Galaxy is the only game I'm really looking forward to for the Wii. Still, I would give it some more time.