Good point qtiger. Infiniti's reliability is impressing me, they've always been very good. The VQ 3.5 liter V-6 has always been relatively problem free, and it looks like their 4.5 V-8 is as well.
Nissan has fallen down quite a bit. I'm guessing it's due to the 2.5 liter I-4's bad habit of habitually drinking excessive oil, and the crappy interiors falling apart.