Actually, archers with longbow tend to get owned by archers with warbow, providing the same skill.
So yes, longbow is a tincan killer (well, more than the other cutting bows, that's sure) but the warbow is FAR from needing a buff.
For all xbows user whining about archery :
L2p. Gurnisson and Poophammer are doing perfectly fine with their absolute accuracy at even long range, and less than 1sec reload speed at 160 and more wpf. And did you know Arbalest needs 15 str while the Longbow/warbow needs 18 ? Wow, that's actually 3 more agi point, so a lot more effective wpf in the same level. (going in melee or xbow).
Xbowers, try real xbow build with no melee weapons, no PS, no IF (same vulnerability as dedicated archers to melee) and then you can compare your reload/firing speed/accuracy with an archer. And guess what, you win with your heirloomed items too ! Stop complaining. And stop speaking about an undesired subject in a topic speaking of BOWS only, it makes you look like noob ragers.
Edit : Gurnisson, what armor are you wearing ? Poophammer told me that at 181 wpf, naked, it takes less than 1sec for his MW arbalest. :S Was probably exagerated and it's less than 3sec, wich is still perfectly fine imo.^^