Help me decide what car to look for next!

HKYStormFront

so i'm hoping to scrounge up some money this year and hopefully by the end of the year be able to put a sizable down payment on a 2nd vehicle. my truck has been fantastic and i still love it just as much as the day i bought it almost 6 year ago now. however, there isn't a whole lot of room inside the back to carry all my photography gear and/or extra passengers when people come to visit me. i just have a few requirements which limits my list pretty considerably. i want leather (preferably heated) power seats, four doors, mid size, and manual transmission. this will mostly be a highway car going to meets and photo gigs so highway fuel mileage important tho i'm getting 22mpg in the truck and as long as it's not worse than that, i'll be happy. i've basically narrowed it down to the three vehicles in the poll above. what i'm looking for is people who've owned the vehicles or had good friends who had them that are familiar with the ins and outs of each car. as for the infiniti, i'm hoping the G37s will come down in price into the bracket they are affordable to me (trying to stick to $20k-ish or less if possible) by the end of the year. so you tell me, out of the three above, which one should i focus my search on when the time comes and why?

__________________
Patrick // 06 Frontier 6spd Nismosis // Mods: Uprev Tuned @ Z1 Motorsports: 257whp & 292 ft lbs
09 Pontiac G8 GXP // M6 // Sunroof // Tint... For now