1. DiVA - I like the songs they release, plus you can't go wrong with the members.
2. no3b - Fell in love with them through mendol and they have some pretty solid releases.
3. Not Yet - Not really much of a fan of their songs in particular. I just really love the members in this one.
Honorable mention goes to WataHashi, again not really a fan of some of the songs, it's just the members that make it.