Not sure if you've listened to Dal Shabet or not Riv but if not: http://www.youtube.com/watch?v=hEonbbcdCtg
So good, they don't have enough songs yet to be one of my favorite groups but I think they will be when they've done more stuff
There's also Miss A: http://www.youtube.com/watch?v=EkSOOiMDGiY
Secret: http://www.youtube.com/watch?v=l4neaz10ljA
Although most of secrets stuff is either cutsey or slow, they have the occasional song like the above
Stellar: http://www.youtube.com/watch?v=94jVqSow0fM
Who only have two songs but they're good.
And in the MV for the Stellar song I linked is Eric from Shinhwa, who also created Stellar
You don't like many boy groups but maybe you'll like Shinhwa, worth a try: http://www.youtube.com/watch?v=uqsHnxo35cg
They are the longest lasting boy group in Korea, or group in general I think. Debuting in 1998
And I feel like I linked you AOA before and you didn't like them but just in case xD http://www.youtube.com/watch?v=9sn_g7aWGoU
And this I'm pretty sure no ones linked you yet, fiestar: http://www.youtube.com/watch?v=gyu_ne_cmy8
Hopefully you like something from that list