I've tried training a Devilsaur and Silithid, but so far I prefer my good ol' Ravager.
The Devilsaur seems nice, but it's so mainstream. With Monstrous Bite and Rabid running, he does some serious damage, though. The Silithid's web would probably be ace in Arenas since it's ranged, but I like my Ravager's stun attack.
The question is, since none of the exotic pets interest me, should I dump Beast Mastery and spend the point elsewhere? Or are the extra four Pet Skill Points worth it?