VENTED VQ5 ALIGNMENT VS TH IN SOUND QUALITY , SPL AND CAB SIZE

I am in the process of designing subs cabs for pro sound use and need the optimal balance between cab size, spl output, quality of sound and ease of construction. The final choice is between a Vented QB5 filtered alignment vs a TH. Aiming at an F3 of around 35Hz and driver choices are yet open.

Which do you think will provide the best balance most benefits......Opinions suggestions discussions are welcomed