seriously? taric's ult grants 70 AD and AP to himself and half that to allies around him, 35. compare that to baron that gives you up to 40 AD and AP.
granted it's not the best ult but it's not garbage.
also, he was reworked sometime last year, more in the form of changing his ultimate but yes he definitely could use a remodel.
aside from that with his kit, sure he doesn't provide +movement speed or have an aoe stun but cmon +armor and armor shred is great too.
His old ultimate used to be
Taric emits a brilliant light, healing himself each second by 30/40/50 (+0.2 per ability power) and increasing his attack damage by 30/60/90. Additionally, it grants half the attack damage bonus to nearby allied champions and 5/10/15 attack damage bonus to minions. The cost to sustain Radiance increases each second.
20 seconds cooldown.
20 initial mana cost.
4/7/10 additional mana cost per second.
we'll see what riot does when they get around to the remodel.
side note: http://www.lolking.net/charts?region...&range=monthly
2nd most picked champ this past 30 days.