Hmm, tough one. In terms of character design, if I had to name just one artist that I want to emulate, it would probably be Tsukasa Hojo. I always liked his character designs in City Hunter; they're realistic, but still just slightly exaggerated and cartoony at the same time.
Generally though, I'm not that hung up on copying any one style in particular. Whenever I see something I like, I'll get a couple of examples of it and maybe try to incorporate into whatever I'm doing to see if it works. I'm open to just about anything so long as it's fairly realistic.
But inking, yeah ... confession time I think. I'm horribly lazy about inking things to the point where I'll often just adjust the image levels until the pencil looks reasonably black and then use digital colour under the pencil layer.
Still, I would like to get back to inking sometime soon. I'm hoping it might be possible to maintain the sketchy quality by crosshatching over the pencil, but any time I've tried that in the past it's generally not come out too well. Anyway, last thing I inked -