Here's my list, not necessarily in order of preference.
Oh Great! (Air Gear)[I think he did some hentai in his early days...]
Fujishima Kosuke (Oh My Goddess)[Especially since the artwork has evolved so much since the first volume..]
Tsukasa Hojo (Angel Heart, Family Compo)[Again, artwork has evolved since City Hunter.]
Katsura Masakazu (I''s, DNA²)
Obata Takeshi (Hikaru no Go)[I don't know of any of his other works.]
I would have considered Masamune Shirow, but his manga artwork and his posters are VERY different.
I just realized after looking at this list... my interest seems to be influenced by 'fanservice' style artwork.. Oh well, no surprise there...
