Dungeons and Dragons appears to be the most played game pen & paper game here as I've seen it mentioned all the time by various different people!

In my 10 year career playing rpgs I've actually never played it! And none of my group played it either. Nor did we have a desire too actually...

Our top 3 pen and paper games we played where:

Warhammer RPG
Middle-earth - (using the rolemaster rules)
Call of Cthulhu <img src="/ubbthreads/images/graemlins/up.gif" alt="" />

We dabbled in a couple of others, but nothing worth a mention!