So Yeah...
Let's begin With Number 5:
Soldier 76
I think he is awesome
Number 4
Reinhard is very awesome. In game he has a massive hammer, and is it just me, or do I get a Lich King Vibe from him??
Number 3
Junkrat
He is cool and I like the insane aspect he brings to the table... or battlefield... whatever
Number 2
Tracer
She's awesome... that's it
Pika-tracer
Honorable mentions
Bastion
Mercy
Number 1
ReApEr
He looks awesome and the dual shotguns are gr8