Which turf is best?

I'm about to lay some new turf and can't make my mind up on Rolawn or QLawn. They are both made up of pretty much the same (percentages) grasses;
Dwarf Perennial Ryegrass 25%Slender Creeping Red Fescue 35%Chewings Fescue 20%Smooth Stalked Meadow Grass 20%
The big difference is that Rolawn is grown on sandy loam topsoil and
QLawn is grown on organic peat.

Also, Q Lawn grade turf is certified by the TGA (Turfgrass Growers Association)
Certificate of Excellence - I don't know if this has any true merit.

Can someone please help me make my mind up?

Thank you in advance.