Spoiler:
2-3. I think you are just flat out pushing what you can expect a 6man to do. Alot of your builds are tied to morales. That means you gotta fight and build it. Essentially, your build is handicapped in that if it gets ganked, or pushed quickly, you're kinda boned. I really don't see this group taking on any decent kiting/ganking group. And a decent AoE group would melt you before you could do much about it.
4. I think you're just really trying for an argument here. Some people really prefer the 6man or small groups. Some prefer larger fights. Considering the fact that there is no real balance discussion till T4, I fail to see what has been "dominated" by the 6man supporters. They got a SC pop. Cool.
5. GL! No sarcasm. I'd like to see what you can pull off.