Eloise and the hybrids are the worst, I think a close second to those two would be the Queen Mother, it was a good concept, but the design looked like shite. The Alien King also looked pretty crap, but I guess it was excusable as it was genetically f***ked up and got owned by a Queen anyhow. Of course, a lot of the more obscure castes from the old games looked a bit weird, but it would have been boring without the variety.