Tyranid Prime
Now here is another really interesting choice. I think a few of these guys might be a great choice to help your Warrior squad,as they do give their Bs and WS to the squad they join.(Warriors ONLY!)This is pretty interesting as it lets you have a nice midrange move and assault force that is the back up for your first wave of expendable grunts. This guy has taken the place of the Broodlord so if Mid-Small type of bugs are your type this guy is the way to go. I think the perhaps most useful, cheap combo will be, Boneswords, Deathspitter and AG. A nice cheap combo, only 100pts, with a all round loadout so if you need in combat, since he has Powerweapons, he does as well in it as he does shooting. In my opinion by far the best HQ in th Codex for the points you get him at, he's like the next Ork Warboss, cheap, effective and strong. The only down side I can find is that he doesn't pack as much a punch as the other HQ choices. Put him in Mycetic Spore with some DS Warriors and you've got yourself a ticket to objective taking Utopia.
9/10 (Superb) Not much to fault on this one, I know he'll be leading many Nid Armies.