I would prefer X4 out of them all. Personally it looks the best from all of the pictures you have shown me, in both font, dialog boxes, and the avatars. The avatars aren't necessary and none of these changes are, but X4 seems like it has the best in terms of quality(which I never actually paid attention to, good on you Rockman).
I would like to direct you to this:https://www.youtube.com/watch?v=fvNv2E9k6Ic
Exactly. Perfectly exemplifies how rushed X6's development was as well. What's worse, is that it's very clear X should be able to make the jump normally, but the middle pillar/wall screws him over.
It's like the game was only playtested with the Falcon armor, seriously.
To Zero Dozer:
Yes, the hack is meant for every player (I even mentioned other changes, like weapon changes for X to make his weapons more viable) and secondly, the Alia change isn't just for speedrunners: it's for everyone who thinks (not just me I assure you) that she breaks up the pace of the levels. I stated this like 2-3 times now.
Dozer, there's no need to argue over this again. If you want to argue with me about that, we can do so in PMs. The possible solutions as to what do to with Alia have been posted here, no need to fill up the thread about this.
Also, to argue your two points about Boss lifebars and invincibilities:
If you meant just shortening their invincibilities a bit but not remove them, then I'm sorry for having misunderstood you earlier. Thing is, I'm kind of worried that altering some of the invincibilities could lead to some boss fights becoming almost pointless but it could be done: in the case of something like Dinorex with the Spiral, if anything, his animation should be sped up when he gets hit by the Spiral, and then cut his invincibility so that it matches the new animation speed. That way, you cut down on his invincibility a little and speed up the fight without severely altering the difficulty. (Then again, Dinorex isn't tough, with or without the Spiral) But I will state that you (in theory) can't cut down on them that much, because you run the risk of making the fights too easy, and possibly making bosses too susceptible to certain attacks (like X's Plasma shots, or his Gaea Armor's Giga attack)
As for the boss lifebars, keep in mind that they only get really long after they get to a certain level, and on Easy, at least the rematch Maverick ones, since they don't get buffed to Lv. 96.
If anything, the higher level lifebars should be cut down, so while the levels do give extra life to bosses, it's not to an absurd degree like the rematch Maverick ones.
The initial boss lifebars (and they stay for a good chunk of the game) are hardly that long. These ones shouldn't be altered or you run the risk of making the game too easy.