I run a group that runs one-shots most weeks, so I usually get to at least try most games i'm interested in.
However, there are a few RPGs more suited to campaigns that i've never gotten around to trying. Two that come to mind:
- Ars Magica
- Pendragon
Sadly, over the last few years, most of the Lizard People have been completely priced out of LA's booming real estate market.