I don't have too much experience with Ethereum or tokens but here's my view. I just moved from MEW to Metamask and it's so much nicer to use. I was using exodus for eth but it doesn't support enough ECR-20 tokens so I went in search of something that did. I don't want to pay the daft ledger nano price so Metamask is my choice atm and I like it.
Isn't MEW more secure though? I mean, if you create an offline paper wallet using MEW...
Metamask is more secure than MEW. If you'll actually notice the announcements and notifications on MEW they DO NOT recommend simply using MEW with your private keys. The best thing to do, according to MEW, would be to use a third party tool like Metamask. They already explicitly say it.
From my experience, i've been loving metamask as well. Its simple to use and easily lets you configure GWEI price.