Most likely both sets came out of same generic factories.
I've heard favourable reviews of Monster. Having not dealt with either, I'd lean towards Monster.
Then again, I bought generic unpainted set off eBay for my 250 years ago. Rattlecan painted it before putting on my track bike. Similar to these:
https://www.ebay.com/itm/264147651526
https://www.ebay.com/itm/334191393472
https://www.ebay.com/itm/164908168027