Despite really loving all the Nintendo games Monolith has put out (from Baten Kaitos to Xenoblade 2)
I don't really think Monolith has performed at the level of Retro Studios. Their games are still just a bit too clunky to hold in the same league as Retro.
Between Metroid Primes and Donkey Kong Country Returns's's's.....Retro has a sterling track record.
The most important thing is the fact that these two quality developers are 2nd party's to the goshdang marverlous Switch.