Anything Lowa makes is great....that's all I wear. Be patient and you can find them on sale. The Renegades as pav mentioned, are the most comfortable and lightest weight and require no break-in period. For rockier terrain, you may want the taller, heavier models with rubber banding to prevent boot damage, like the Tibets or the Hunter GTX.

I usually re-equip all my boots with aftermarket insoles to get more padding, especially if I'll be packing heavy loads.