I've never seen why the Wii's online get so much hate myself. It's clearly the worst of the 3, but the gap is by no means as big as people like to make out. Other than the fact that no-one uses voice chat, there is basically no difference between the online on MH3 and any of the games I've played online via PSN.
I've almost never experienced lag on any of my Wii games online. Even on the much maligned SSBBrawl, I've only seen lag maybe 5 or 6 times and it wasn't gamebreaking on any occasion. The other games it's even less, for example I can only remember lag on Tatsunoko vs Capcom once and maybe about 4 times on MKWii.
Even the much hated Friend Codes I've never had too much of a problem with. I just wish that I only had to add people once, rather than once for the Wii console then again for each game. And that's been solved with the 3DS' online abilities.
