I play HB only these days, before played arcade but then turned into HB. The flight model in arcade is so simple that BnZ, rope'a'dope and many other tactics unusable and fights mainly centers upon turnfighting. Also no high altitude fights and same boring missions all over again, HB also gives more exp and credits as far as you can play and you can lose only one plane at time so all my planes are getting auto repaired.
Never back to arcade. German get bit shafted though against american with the underpowered MG151 currently in bulge but eventually it'll get fixed. Also LA-5FN is even more OP in HB as is most non flight modeled planes. German planes without flight models under perform though.