Tried both. For me there is pros and cons with these two dex. I've been using uniswap and so far it's more efficient, but with the rise of the fees using it. I think I'm looking on some dex that has solved this but apparently uniswap list of tokens are more in demand especially on some dex only few tokens were supported and injected with liquidity. Sushiswap is also good. They have some improvement and their liq is started to grow. But as I've mentioned they don't support majority of tokens. Just an observation.