I don't like the idea of balancing team games in 'one faction lategame up, so another faction lategame op balances that' way.
Except brits are not op late game.
They are on pair with axis late game.
Comet stands up to panther, but its more expensive and have worse AT stats.
Brits have no tiger/is-2 equivalent, but have churchill damage sponges.
Axis AT is still far superior with super heavy TDs.