Patojo's is one of the best,I've always dove with Amigos Del Mar, whether I'm solo or bringing groups.Never had any complaints.
If you make the B.H.Half Moon Caye trip which is part of the Light Reef Atoll, you'll probably go with Amigos Del Mar,they have a big fast boat that you'll stay dry in. The two wall dives after the B.H. are the two best dives I've made in Belize! Expensive trip $165-175US but worth it!!