There's only a few certain Mech Tech figures that I'm specifically trying to buy and collect

Bumblee
Laser beak - you do know his head is transformable also?
Mudflap
Skids
Barricade
Barricade's other police buddy
maybe Ratchet

 

I don't chase Devastator much usually - But I will buy the new KO's other than that absence I don't think of buying Characters so much as toys.

 

01) Movie Ironhide
02) Movie Bee - though I'm not a completist, there are just too many re-releases and repaints and some that I don't care for.

These two I don't have as much of yet in comparison to the above two, but I can see myself getting more in the future:

03) Hot Rod/Rodimus
04) Grimlock

 

WST figures, but not KO ones, only ones released by Takara or Justitoys.


I do have a small collection of Prowl/Red Alerts, as of yet I have none of the Beast era ones.

 

Jetfire and the Insecticons.

 

I have some dedicated shelving specifically to display...

Prime vs Megatron
Shockwave
Soundwave
The Seekers (the original three)
Hound
Jazz

 

Right now I'm collecting all official Rack 'n' Ruin toys. It's not a big challenge.

But seriously, I'm actually more into collecting the casts of the movies and tv shows, for example I have every main character from ROTF, all the main Autobots from Animated, and have *almost* all of the DOTM characters, in fact I have every one released thus far, which is weird because I'm usually not so on top of things.  

 

I know that I'll never get all of them, but I like collecting Thundercracker(look at my avatar) and Ironhide. They both have dedicated spots in my collection for any incarnation of the character.

 

I'm a sucker for arachnid transformers so my collection is Tarantulas, Blackarachnia, and Scorponok with my lone Crystal Widow taking up the rear.

 

Hot Rod/Rodimus. He's always been my favorite character, but recently I've wanted to move on to another character.

 

Jazz and Movie Ironhide.

 

I don't aim to collect anyone more than other, but as far as it's G1-ish, I'm there to buy it! And since Optimus, Megatron, Starscream, and Skywarp/Thundercracker repaint are more often than not present at some point, I have more of them than any other  

Plus I tend to keep some Skywarp duplicate if it's different (like the Classics and Henkei version, or both Masterpieces), otherwise I don't do it.

 

I don't collect specific characters, but I often wind up with at least one Starscream from each series or continuity. I'm going to get the Prime Starscream, and if they ever make a WFC one that's bought too.

 

I tend to go for aesthetics rather than certain characters, but I've been accumulating primes recently. Never been a huge prime fan so I guess it's more a mark of some quality prime figures.

 

Skywarp is the only specific character I collect, although I don't go out of my way to get hard-to-find or expensive versions of the character.

 

Decepticons. Specifically the ones I like.