Sdaniella: D4 = ExpSim LV (maybe; most likely for stills and video); more MP than past 12Mp but only a bit; allows for fast fps still; but not fastest; video now 1080p, but DR poor, too contrasty, blowouts hard to control, not good for cinematography.D3s = ExpSim LV (stills; video, but only 720p); resolved less than 5D2, a given; but had better hi-ISO IQ; good AFD3x = ExpSim LV (stills); hi-MP (but IQ iffy; resolves less than 5D2 at higher ISOs); AF iffy.D3 = ExpSim LV (stills); lo-MP (but IQ superb at higher ISOs; but resolves less; a given; offers higher fps (for lo-MP; this is a given)); AF good.
D800 = NO ExpSim LV (for neither stills or videos; like D700, but D700 only lacked video); but now has very hi-Mp; IQ will only be good at lower ISOs; lesson learned from D3x, and best left for studio. video only as good as D4 or less; also too contrasty and hard to control DR unremarkable for cinematography. AF be similar to what D3x faced for hi-MP. Much cheaper than non-ExpSim LV 645D or any MF
You lady are on crack. D800 has ExpSim LV.