Well, that's a massive generalisation if I've ever heard one...
To say my own views on these three things...
Graphics: I simply do not get impressed by graphics of a higher level than Resident Evil 4. Resident Evil 4 is the pinnacle of graphics for me - Sure, I can tell when other games have better graphics, but I don't care in the slightest. If it's RE4 or better the graphics are already perfect, for me.
Online: PC has superior online and has had for years, I don't play consoles for online and probably never will.
Controls: Wii has awesome controls, and the motion controls aren't just about shaking a wiimote. Older controls are fun too, but the Wiimote really is a nice piece of equipment.
Also, most people, myself included, actually do think that Nintendo have made a massive slew of awesome games this gen ... You don't think that might be why they get our support?
EDIT: And now I notice this is pretty much a copypaste of Rol's thread...