Can't go wrong with a Howard Hill, but if you want to try different bowyers, Nate Steen at Sunset Hill is really good. I've heard nothing but great things about Dave Miller, but haven't had a chance to try one of his bows yet. For used, no longer in production bows, find a Bighorn by Ron Maulding, especially a "Tamarack" model. For rarity, a bow by John Sherman is a great performer and pretty scarce. And probably the least known bowyer of Hill-style bows I've come across is a newcomer out of Kentucky, David Underwood.