Blixt is for advanced lightning users and has a lot of custom settings that need know-how for it to work. You can use it in testnet and learn more about lightning tricks. Their community is really active and responsive for Q&A.

Depends on what you're using it for, I think?

I do like the lnpub->CLINK concept better for a day-to-day nickel & dime wallet, but not for larger private spending channels. Blixt works really well for the latter, for me.