I'm not worried about English dominance - there are always going to be stronger Leaders
It is never going to be perfect--there will always be some Leaders whose Traits and Unique Unit/Building will give them advantages in certain situations.
I suppose that we could go out of our way to use inferior Leaders, but I'm not really on board with feeling the need to do so--I would recognize someone's achievement for doing well despite an unfavourable Leader selection, but I'd still appreciate an achievement that was made with a Non-Incan-but-otherwise-favourable Leader selection.
I just want to knock the Incans of the top spot then I will be happy!
The flip side of the argument is that if all of the other Leaders had an equal amount of #1 victories as each other, it would take the most possible effort to achieve this goal. Having another Leader being relatively high in the rankings actually makes this goal easier to achieve. As cheap as it may feel, one alternative approach is just to play a lot of games with the #2 Leader, thereby artificially knocking the Incans off of their top spot. However, I prefer how we've chosen to publish the statistics that display the trend in Incan #1 victories, so that we can encourage explicitly targeting removing some of those #1 Incan victories.
I imagine that most people will, most of the time, try to pick relatively favourable conditions for their victories.
I, personally, am content to just not play with the Incans, but beyond that self-imposed restriction, I see nothing wrong with choosing favourable conditions for a given victory. If you can "divine" aka "figure out" the ideal conditions for your chosen victory, all of the power to you (except for when you choose the Incans, which, to me, is like playing on Developer Cheat Mode).
As for Warrior rushing, it really is hit-or-miss, so by taking that approach, you'll probably only end up with a mediocre map, on average. But, when it's successful and you get one or more AI capitals early on, this fact can help to balance a mediocre map.
In other words, if I had a great starting area, I'd probably forego the Warrior rush and use my advantage (Gems or Gold in the big fat cross) to try to find a Strategic Resource or even to self-tech Archery. Meanwhile, if I had a not-so-great start, I'd be more willing to try risky play and if it failed, I wouldn't mind abandoning the map, but if it worked, then it might turn the game into a "keeper."