In warbirds we have same spits 1,5,9,14 ( 2 spit5's variants )
In Warbirds we have a rolling plane set.
ie not all planes available at the same time in ww2arena.
spit1 early war : better than the 109e - disadvantage negative G cutout)
spit5 early : better than 109e but with
carburettor ( negative G cutout)
Spit5 late : better turn but worse climb than adversary 109F and slower than 109F
spit5 late vs 190 : outclassed in all but turn.
spit9 vs 190 : close match - turn vs speed and handling ( 190 does handle much better at speed E retention of 190 suck)
spit14 (fm is not up to date and it suck compared with dora (which also suck

but is better than 109k (which also suck gun-wise 30mm)