We can't really compare ARB with SUI, could we? I mean judging from the growing TVL and the increasing transaction volume in Arbitrum, I think it could reach 10 billion market cap and even outpace the likes MATIC and ADA in a fully fledging bull market. ARB could basically be a leveraged bet for Ethereum and many projects in ETH L1 will later have to have a go to L2 and Arbitrum would be their best option since it has the highest TVL, activity and volume.
But if you guys think I'm wrong then what's the best ETH L2? :/
that's really true. I always think about arbitrum is the next best thing since ethereum. for the reasons you mentioned it has a growing capacity and can't be compared with the likes of sui. I don't see better options for the competition.