I've been seriously wanting a longer macro lens to replace my Sigma 50 and have narrowed it down to either a used Nikon 105 AF (NOT the AF-S version) or a new Tokina 100mm Pro D. I think I've read almost every review on the web, and all the forum topics I could find, but I don't think I've seen one where the author actually owned and used both.

So how about it, anyone on here ever owned or used both? Which really is the better lens of the two? I'm not overly concerned about autofocus speed (although painfully slow won't be acceptable), but rather with sharpness and image quality.