Spit 14 will get mauled by an La-7 on the deck. The La-7 accelerates better, is faster, has almost as much firepower, turns just about as good. The only advantage the Spit 14 has is in a sustained climb. Same story with the F4U4. The Ta152 isn't even in the same league as the La7, a Spit 9 will eat the Ta152 for lunch on the deck. The Tempest is the best 'all-round' perk plane, and it is probably about even with the La-7 on the deck.
Now, the La-7 can be killed, don't get me wrong. Hell, I died 3 or 4 times today in it, which is more than I've died the whole tour to date. The secret is to get some fast planes and some good turning planes, and gangbang it. If the fight is one on one, you have to be a better pilot than the La7 pilot is, or you will lose. If it is 3 or 4 on one, even the best La7 pilot will get overwhelmed. At least if you get your fast BnZ planes to slow him down enough so the good turning planes can engage him.