FLO Florin coin - a coin with transaction comments (first coin with transaction comments)
Novacoin - A scrypt coin with POS from PPC (hybrid of LTC and PPC) (premined, and thus lost trust)
YAC -NovaCoin fork, with modified scrypt hashing
ANC Anoncoin- a coin with I2P support


Cosmoscoin - novacoin with transaction comment (no premine) - (Hybrid of NVC and FLO)
Freecoin - YAC with and transaction comment. (Hybrid of YAC and FLO)
XPM PrimeCoin- mining PrimeCoin helps looking for prime numbers, instead of wasting energy. for now cpu-only. (no premine)


I seem to like cosmoscoin and primecoin.