I always thought the Maverick was the LSS's Daddy, (Grandaddy?).
The Blue Angel is a design not shared with any other amp ever built. That's why I was curius about one since I first read about them when they first came out. I love the single channel, 5 knob idea, and the ability to change power tubes on the fly. Mine gigs every weekend.
I spent 5 minutes with a Heartbreaker combo years ago in a store and have never seen another one, but have read good things about them by people who like em'.
Best of luck.
Murph.