As long as making ERC20 transaction is concerned, on mobile, imtoken currently stand out in terms of scalabilty. While trust wallet always take longer time for transactions to get confirm or it can keep pending. but Imtoken is very fast with same gas fee. This can save the day on an emergency day. On PC and trading on uniswap, Metamask is the king.
imtoken can indeed be the best wallet choice but there are still some good wallets too, one of which is the Trust Wallet and currently MyEtherWallet is still widely used to store various kinds of tokens based on erc20 or other, the most important thing is not to have too many wallets and make sure the security of the wallet you use is very high.