I dont think that PVP on GG is fair. GG is settled by an alliance with many towers, preventing any fun for new/single players. Why is PVP on GG not „fair“ ? I will explain you.
If i land and spawn a HV it will be attacked by the GG owner alliance with a garage SV. If i spawn an op mega tank and fight this SV, and maybe even nearly beat him he just flies back into the cover of his towers when tides turn against him, then he repairs and attacks again. If on the other hand i spawn a tower, then he will take it out using the plasma sniper exploit OR bring his 20 friends in their SVs.
What else ? I could try to find some fun in my own mega op super garage SV. If i spot an enemy HV or SV they will run into the cover of their towers. And they have many towers with overlapping fire arcs.
So this will not change as long as bases are allowed on GG, without bases this planet would be a lot more balanced for PVP. What i told you is not theory, i roam GG nearly every day