I can go one by one and tell you why each of them are Uber, and you forgot one plane in there.
LA7- LA7 is uber because of its guns and speed, that's given. But, it also is a decent turner and I know can out turn a Temp in that category.
Spit14- It's not all that uber, IMO, the only thing it has is good climb. Decent turn, about as good as LA7 turning wise, and it has good guns
Spit16- Probably the most dweeby plane in the whole set, it has good guns and climbs really well. Spit is ok, but its not a ball of fire.
Tempest- I love the Temp, my favorite in the uber plane set. Probably the best guns in that set, and it can turn against some things like a Dora. It has the best climb, below 20K and its a lot of fun to fly.
Fw 190D-9- D9 is good because its an excellent BnZer, good climb good guns but not a good turner. Probably the worst turner in the set there.
The one you forgot to add, and probably the most uber of them all is:
F4U4- F4U4, best in the plane set. It turns inside of just about everything, with flaps. awesome climb about 15K, and pretty good guns. 6 .50s can saw off a wing in no time.