I think scrypt mining is only worth it to mine with asic miners at the moment. GPU mining of scrypt is too ineffective. So the only thing for GPU mining right now is X11 algo. For the next few months the X11 coins will be a lot more than the scrypt ones. So if you have GPUs for mining I suggest mine X11 coins or even Groestl - best hash for power...better even than the X11 algo.
As for the clevermining I had very good time mining here until a month ago. I switched to X11 mining two weeks ago. So if Terk sets up a X11 clever mining I will be happy to mine there.
Happy mining to all.