My favorite base is still the 40mm round that GW makes... I dunno what the deal with it is, just ifts right into my hand. So, lots of my stuff will be featured on them.
I have most of my Reaper stuff mounted onto them already (or onto the larger Epic Titan baese), with greenstuff built up around those ugly little metal things the models come on.
Also, I like to place character models onto them, as it gives a little more room to make the bease special as well, and helps mark the models out as characters on the tabletob (Which one of those thirty Ork boyz is the Nob again? lol).
So until something I like better comes out and is readily available, I\'m sticking with the 40mm round.
Joe