Skaven
...ah, brings back happy memories of Blood Bowl weekends at University. I fielded a team of Skaven with moderate success. Of course they tended to get the crap stomped out of them by my mates ogres, when eventually they could catch one...
Actually fielding the players was only part of the fun. I had them magnificently painted eventually which whiled away many a peaceful hour, and of course there is the beer drinking involved in a good Blood Bowl session, which I suspect will be sadly lacking from the online version. Drinking on your own in front of a computer is definitely not in the same league of entertainment as being round someones house with half a dozen mates with a good helping of competitive spirit going !