Whos your Cannon/Main frame? And why?

I like to pretend we have a inclination towards a single frame and mines Rhino Prime. Played as a kid for awhile and came back years later as an adult. Didn't know anything except that I had a single prime item and a big axe, and thus my reawakening began....

As I progressed through the story for the first time, it was almost like the memories were coming back in game and irl. I was completly immersed with the feeling that Rhino and I had fought for years together before now, only we didn't fully realize it yet.