Kelpsy berry is good for Beauty/Tough (my Milotic is proof: when it evolved it got both corresponding scarfs), Qualot berry is good for Cute/Tough, etc. I recommend using Pomeg, Kelpsy, Qualot, Hondew, Grepa as well as the others that follow(Tamato, Cornn, etc.). They are usually the best ones for pokeblocks. The guy in the chair is the one that gives you the scarfs.
Hope this helps.
BT ;383;