Style should really depend on who's at your table and playing optimally vs them. Personally I think deep tables can be profitable either lagging up and using your stack to put maximum pressure on your opponents, or playing standard tag/nit and making the most of those implied odds like you indicated too. I generally like to go on 1/15 basis for calling 3bets with pockets pairs, I.E if the 3bet is $5 I want effective stacks to at least be $75. Of course this is very basic and other factors should effect your decision too.