Go with the Quick. Compared to the Huffy, it will feel ike a rocket ship.
Change out the saddle if you hate it. You can try Ergon grips with bar ends or even try swapping out the flat bar for one with a slight bend that will put your wrists in a more natural position. Better yet, try a road bike with drop bars.
Last edited by MRT2; 06-22-14 at 06:17 AM.