Tricky to compare the two I would say.
Different size heads, different weight, different balance and different flex.
It depends on your preference.
I use the Bio 300 and its a lovely racket. Just enough head size to maintain good control (I find I lose control with larger heads). Nice manouvrable weight with a balance that suits the weight perfectly for me.
"Tennis is just chess with balls....zugzwang"
Dunlop, Prince....who knows...who cares.