Follow up.
Well true to my word i done a little digging last night on the subject of monoblocks VS stereo. Turns out that monoblock means that the whole of each channel in the amp is handled as a seperate amplifier, they have separate power supply's, separate grounds and a true mono block has separate chassis for each. This in mind the best compromise is instead of two trafos, two psu's and two amp channels completely separate your better off with two power supplys delivering the same capacitance to each channel as the one would usually provide for two resulting in punchier and tighter bass but with a single large trafo supplying both. A larger trafo will be less expensive and i think im correct in my understanding of what they were saying that a single large trafo performs better than two smaller ones.
seperate chassis are neither hear nor there and only down to preference or high end "esq" aspirations for aesthetics and real world difference is minimal at best, infact i may be incorrect but im sure chipamp or "gainclone" amps perform better with a central ground for both amps, i know a lot of issues seem to be cured with a central earth point.
As for which is better, on paper the monoblock should be the better choice but ive never listened to one so i cant comment with advise for someone looking to purchase one. The only instance i could find of someone doing a side by side test in my brief search was in a sub so nto really gonna help for a complete listning experience.