Good point
Your right that is general rule. The higher the pair the better.
I have a limit 10s-Js are very good hands not locks, Qs-Ks almost a win, As closest lock u got pre-flop duh.
7s-9s are ok hands. 6s and lower good luck with dat.
Qs+ I bet like Aces but with one exception. Ks and Qs try never go allin pre-flop. Usually an A-5/K is out there so I see I try to scare them out or wait to see no over pair A/K flop then I bet like As.
Js-10s suicide Jacks mathematically are great but usually A10, KJ, Q9 hands call if your not carefull and if 2+ of those call u ur in trouble. A on the flop is a death sentence.
The only time this math adds up is if u isolate and go heads up and with Qs-As usually up for it and semi-aggressive on Js-10s. Anything lower if Im short stack or got a read might try an isolation pre-flop. If you don't get an isolation on 4s ur kinda screwed.
Its how u bet them more than the math... bad betting can ruin the best of cards.