I'm just guessing that more information is needed concerning the use of your board, the amout or range of money that you want to spend, the number of keys that you need, what features you want, arranger, workstation, digital piano, etc. to get a real good answer. Personally, though, I like , in the order given, Yamaha, Roland and Korg. I prefer 73-76 key synth type boards(as opposed to graded hammer action). Currently, I own a Yamaha Motif XS 76 key and a Roland Juno Gi 61. I like them both very much, but the Yamaha tends to cause me finger pain if I play it exclusively over a long period. They are, however, radically different boards.
There is such a great variey of keyboards out there that you will surely be able to find one that suits you at a reasonable price.
