I think the LA352 / B7610 offered me the best "power per dollar" ratio when I was purchasing. The FEL has done everything I expected it to - and even some things I didn't expect (see rock moving!) I also can move some fairly big logs - in the *logging* example - parts of a big maple that had to be removed in front of my house.
I find the FEL is the simplest attachment I own to remove an re-attach - perhaps some other brands offer something *faster* - but I can't imagine it really makes all that amount of difference - for me it's less than 5 minutes on / off.
Detail Pics: FEL Bucket Hooks FEL Control Valves
FEL at Work: Rock Moving Logging Leaf Pickup