I try to put my pets all to 100 in each stats, but my "main" battle pet is only one. Though some pets I trained in the past for jobs and their stats are past 100s, so I'm trying to at least make it all 200 or some other round number and focus only on one battler as it gets more expensive with time. But yeah, I dislike leaving my pets with those beginner's stats. x)

Having those sets already made and ready to go at least helps grease the wheels. If I had to redo my main weapon set for each pet or just do it on the fly for every battle I'd never get anything done.
Late reply sorry, but thank you! :D I appreciate that! Evyline is a very special character for me and I adore her, though her art and profile really need updating... At this point I think I only have, like, two pets/characters with up-to-date art anyway. One of them is my main battle dude, now that I fixed the broken image, lol. I'm up to 80 pets now and oh boy is it going to be a while before I can get everyone to tier 3. Yay training. Do you have specific training goals for your pets, or are you just kinda winging it?
Also I just have to say... that even with the probably hundreds of millions of sP I've put into training my pets, I have an incredibly hard time actually motivating myself to battle outside of daily quests. xD So you are not alone in needing to actually get around to battlign more, lol.

I basically wing it.
Plus i don't like seeing pets with basic stats. if i had 80 pets, i'd have a pretty good excuse not to train them LOL [too much clicking, something] but at just 22, i see fewer excuses. ;)
I really have to update my blog ObscureJourney and my review site BeingObscure. French speakers can read my reviews here.
I'm only training Cinnabun at the moment since I'm still pretty new to battling, and also because they're my only pet so far with intended malice.
Might train Bathilda or Buttercreme once I get better at it, I guess.
I train 14 of 15 pets. 8 are my permanent battlers and the others are ones I will eventually adopt out after reading and training them up. One is just waiting on a friend to have a slot open (the one I'm not training). ^.^ I was going to leave the littles (my small 4 permanent battlers) at a lower tier but they've crept up to t5 already. XD
Do you have a rare item that just won't sell? Are you going through the high levels of Item Hunt? Or maybe you just HATE that blue bunny? Then you should join IHH helpers and IHH bargain in the forum groups!
I'm supposed to train about 6 out of my 77 pets only, but I can barely handle one: Schwarz, my main tier 11 battle pet (not even training him at the moment, meh).

I'm "training" 12 of 21 pets. Only one is an actual battle pet though, and the reason why I train them is simply because why not? All you have to do is press a button to increase their stats. Plus, getting a good pet takes an eternity and I want to make sure I won't regret in the future. I tried training the ones that came after but it ended becoming too many clicks and I gave up. I should and might train Nezuko because she's a fanpet but 12 is a multiple of 3 and I'm too lazy to scroll an extra roll.