I don't think GW thinks well of people posting unit stats on forums. If fact I think they've gotten forums shut down for that. Maybe I'm mistaken.
OT:
Firewarriors are one of the best (unmodified) Troop choices in the game; though, after other armies have tweaked their Troops, FWs tend to drop in the rankings.
I'm of the opinion that Firewarriors without a Devilfish are like pins without a point. Shiny, but not as useful as they could otherwise be. Tau rely on mobility and overwhelming firepower. If your FWs can't move quickly to change the dynamic of the battlefield, then they're so much dead weight. A Devilfish is a great investment with the right mods. Also Devilfish carry lots of extra weaponry that can be utilized against massed squishies, and you can outfit them with Seeker Missiles to deal with harder targets when necessary.
My style of play with Tau is one without battlesuits (except Stealth Suits and HQ, I'll use those). I call them my "No BS Tau." Someone had accused Tau players of only playing the army for the "broken" battlesuits. I took issue with this and resolved to leave those out as much as I could. I found that, even without the Suits, Tau can still be a nasty hit-and-run army. I use mostly tanks, Devilfish (filled with FWs and PFs of course), and Piranhas. I have yet to seriously win any games, but I blame that more on my lack of tactical experience in the game than any inherent flaw in my idea.
I don't know if this helps, but I like Tau. Fight on for the Greater Good.