Update for anyone else interested in this information.
I'm currently running with 3 Dire Wolves and feeding one only Set Armor (Melee), another only Rare Armor (Melee), and the third simply any Magical Armor (Melee). This may take some time to complete the tests as I don't use cheats or mods. (Yes, I'm very bullheaded about finding out things and will do things that that can be mind numbing and find the fun ^.^)
One thing to mention is that at level 25, even as babies, a Melee and 3 Dire Wolves are tearing through anything and everything in seconds. Currently Just starting in Act Two, Merc mode. (Yeah, low level. I just started this char On Monday lol)
I will be editing this post for further details so as not to continuously bump it and annoy those not interested *Grins* Though I expect some time to pass before I can update on feeding pattern results.
@SWC, yeah, I thought about the healing pet, but I rarely get hurt enough to need healing. Using Weapon/Shield fighter and letting the Wolves do the brunt of the damage. I'm jacked on Armor (276 current) so stand out and annoy the mobs and let the wolves tear them apart. A few healing potions for the tougher fights and all is well
~Jessy
EDIT::
Update: Due to the slow find on Set Armor, I've switched to another DW and feeding it Unique Armor. I sent the Set Armor DW to the Inn and will continue to feed it all I can find, though I feel this one may take a VERY long time, heh.
Update(7-8-07): Magical Dire Wolf matured. Rare Magical Dire Wolf nearing maturity. Unique Dire Wolf just grew out of Baby *winces* Easier to feed the other two when I can just spend gold to buy them food at the armor and weapon's shop in Kalrathia *smirks* Also approaching level 46 (level of stats given on KG's site). Will update at that point with whatever data I have for relevance.