I've been wondering which version of a mod is better when it comes to features - I read that 1.7.10 is more rich in terms of mechanics etc. but now I'm not entirely sure about that.
The 1.16.5 (will be ) better ( it's not yet down) 1.7.10 is amazing . Play 1.7.10 until 1.16.5 is updated to at least include the main features of 1.7.10.