Unless, someome's team is ridiculously stacked I've never understood the whole "I don't want to play him because his team is better" bullshit excuse.
I'm in a league now where I'm 3-8. My team has underachieved..but I still have a shot at the playoffs (need to win out, have another team lose out, etc). I could have traded some guys for future draft picks but I would much rather do everything in my possible power to make the playoffs. I would never, ever tank.
Plus, I'm a Chiefs fan. Fantasy football is all I got.