From memory the Bitstamp BTC withdrawal fee is zero (as far as I remember, they pay the miner fee... but I'm not sure!).... and the Binance STEEM withdrawal fee is 0.01 STEEM. Neither of them has receiving fees... and the maker/taker fees are 0.1/0.2 percent I think... although, I would need to double check the fee schedules!

Of course, when BTC miner fees are high, then I wouldn't use it (actually, I would use the same LTC bridge that you did, just with different exchanges). Although now, I might consider the BinanceJE fiat bridge that has opened up...

Anyway, if you don't have a Binance or BinanceJE account already, these are referral links. I can't remember what the benefits are though...

EDIT: Bitstamp trading fee is 0.25%

EDIT2: BTC fee is roughly 40-45 cents, but Lightning might change this balance!