clutch, try espn.com's fantasy football. started using it this year for the first time, had no problems and the league is really customizable to anything you want pretty much. you can also upload any team photos you want.
LOL Clutch Fanstar works for me. Been using it for all my fantasy leagues for 4 years. http://www.fanstar.com/
I've used Yahoo, ESPN, CBS, Sandbox, and one other I can't remember. Yahoo has been hands down the best. Stattracker is well worth the $10 and there are rarely, if ever, any problems with scoring. ESPN isn't too bad. I never liked cbs' format. Sandbox was cool until they started charging and coincidentally, they're servers started crashing on a daily basis.
My friends and I have been using the free Yahoo fantasy sports for several years and love it. This year we ponied up for their upgraded package. Its pretty great too. I haven't played in any other service...probably because I haven't needed to.
I rarely have trouble with CBS sportsline and we run two leagues through it. Now granted I don't sit there and check my stats all day and night I just check a couple times on Sunday. I really like the record book feature and since we've been using them for so long and we have a keeper league with the same people playing year after year it's nice to be able to use the record book to talk some smak. This weekend I put the beatdown on a friend who has never beaten me since they started keeping the stats in the record book (past 5 years or so)
It was really bad yesterday. The site was slow as hell and didn't even come up for a long time. pissed me off big time. This is my big money league i play in and every move counts. I play a few in yahoo for fun with friends but the money league is damn important to me and cbs dropped the ball this season....crap i tell ya
