I am totally biased to JK. my previous Boat before switching to JK was an EZG 60. > 2007 4fun> 2010 Superstar. 2010 superstar is the best boat i have ever had. it absolutely kicks ass. and they are known for being good river running playboats. (unlike the rockstar series)
i would look into a newer (2010 4fun or 2010 superstar) they eliminated the superfun and monstar, but made the newer boats a little bigger to fit a bigger range. like bigloco said the superfun is a huge boat.
i would bet you would fit into a 2010 4fun. and maybe even a superstar.
btw i weigh 235-240 (although i am only 5'7) and the superstar floats me fine, but i have to be selective and carry the minimum kit with me in the stern for performance.
I also am an intermediate downriver type playboater similar to what Bigloco described. prolly not as good tho
all that said, between superfun and fuse...superfun is prolly not the choice. but you really have to get in each boat and see how they fit, and paddle. JK fit me really well. some peeps cant stand the outfitting. I dont mind it. WS outfitting made my legs go to sleep.(never got it adjusted right i guess) JK are also really easy to roll, which makes me very happy, and they surf and play like nothin else... so yeah i am biased. the exceptions being the rockstar. hate that boat.
good luck. and go sit in boats at a store like CKS. they will help fit you out proper.