I do prefer rubber stamps (red, grey or whatever colour) but you can't always get the image you want in rubber so I have had to buy some clear stamps.
I did un-mounted all my wooden stamps and now store them in binders as they are all on ezmount. I don't have any problems lining them up as I have a stamp-a-ma-jig. I do have quite a few clear stamps and so far they all stamp fine for me but I do have to try them out on copy paper a few times to get a good image though, if they are new.

Jan