Rake question

[scum1]

this is a weird question... when you guys think of rake, is it meaning that the back is higher because of suspension, or because of tire size..reason i ask is because today i used my front wheels to move my trailer out of the garage, i have 225/75/15's and jsut for fun i threw on the trailer tires 205/75-15s on my truck..and the rake was bad a$$ looking..so i was just wondering if i wanted to rake out my truck if i should raise the back by removing lowering blocks, or get bigger tires for the rear...whats a better look??