would a green respond faster than a red when waking up from sleep ? would it hang a littile on the reds more than the green or would it be no different as I use my htpc in sleep mode alot and when it comes out of sleep its stright onto the desktop as my htpc uses samsung f4 drives.
I doubt you'd notice any difference at all, even if there was some millseconds difference.
Another question the greens have a reported problem of having head parking problems and can reduce the life of the drive is this true and is it also the same on the new green 1tb per platter. is this true ? as the reds dont have head parking.
Never been shown to be a problem, it was always only conjecture by OC people examining SMART data and jumping to the conclusion that high head park coount must equal imminent failure. I don't think there's been a single case of a WD Green failure attributable to head parking. On the contrary, it saves the drive in the case of shock.
All things being equal, I'd go for a RED. It's quieter... and I tend to run my PCs more 24/7 than on/off. Or at least in "delayed" sleep mode. (half hour of inactivity, not the usual 5-10 minutes)