I like 3.91's-4.10's, 70mph is about it for hwy cruising but they're fun around town, If I want something that gets good mpg and goes 140+mph I'll drive my Charger.

I'd rather have it geared to low than too tall, my daily driver truck has 3.55's and shifts 2-3 at 95mph and it's a 5 speed- It really needs some 4.56's