from what i have seen most people go the county/revenge line as the first uk BB line.

it would be too late to switch from BB to Cv at this stage without starting a totaly new crew

i had a uk bb crew i went with the revenge its 1 of the best ships to use in blitzkrieg

the queen elizabeth has alot of aa slots and it can do small amount of damage to a bb who does not see you but most of the times you get outranged

the king of george 5 i dont know same as the prince of wales remodel but if you can get it to block shot and armor whore or speed whore with it you can do alot of damage

if you wanna do a cv crew go with usn or any other nation as the uk fighter and divebomber planes suck their torpedo bombers are good but dont go cv with uk

I would stick with the BBs on that line. Thats what I went with and rev is one of the best BBs for blitz and QE, if played right, can take out BB5s in a GB. But thats usually only at higher levels so dont aim your sights too high for now. If you are going to use a ship tree reset to go other BB line wait until you can use the nelson as the renown and repulse are bad.