By the time you are 50 and buffed the 30 extra strength won’t matter that much proportionally, but yes, you are technically going to be worse off in terms of “weaponskill” (whatever that means on this server) and damage. You are basically a buff pot worth of stats behind on your primary damage attribute.
That being said britons will swing faster, have higher defense, and better weaponskill with shield so it’s not like there are only cons.
If you like the aesthetic of Britons then go Briton.
Nothing wrong with Briton. a Saracen Armsman is wrecking havoc in solo rvr currently (dont know the name but hits HARD)
However if you ever played a HO Armsman with a thrustpole you know how friggin hard those guy hits. its not the end of the world incase u really want Briton but if you wanna min/max HO is the better pick.