The Top Tier
TRC-20 USDT is the betting workhorse: dollar-stable, sub-$1 fees, ~2-minute credits, near-universal acceptance. Litecoin is the best non-stable option — 2.5-minute blocks, negligible fees, supported everywhere, and its volatility is mild by crypto standards. USDC on Solana/Polygon matches USDT where sites support those networks.
The Compromise Tier
Bitcoin: universal acceptance and unmatched liquidity, but slower confirmations and variable fees make it a deposit-of-convenience, not preference. Ethereum mainnet: fine for large transfers where its fee is proportionally trivial; bad for routine bankroll movement. Dogecoin/Bitcoin Cash/Tron: cheap and fast where accepted — acceptance is the limiter.
Volatility Is the Hidden Cost
Bankrolling in a volatile coin adds a second gamble on top of your betting: a 10% BTC swing during a betting week dwarfs any edge you hold. The professional pattern is stables for the bankroll, converting to/from investment positions deliberately rather than letting the sportsbook decide your market exposure.