I rarely check the h-scenes in the games, honestly I don't like much to any of them as I've never been fond of VN/eroge style h-scenes, unless fully animated like the eroge Sisters ~Natsu no Saigo no Hi~

FKG has to be the least pay2win game of the 5, as it has no PvP system and you can pretty much get all event girls without having to spend real money assuming you started on time. I would say X-Overd is pretty close too based on the first couple weeks I tried, but I quit shortly after so I'm not sure about future content. Then BGR in the middle. Osawari is next to last, a game where you probably won't ever win a top rank event unit being a free player, with the amount of stamina potions needed, booster girls and limited spots on the rankings board where you're basically against a bunch of whales, let's not forget never maxing out of girl's skill because you probably won't ever get enough copies from capturing them let alone gacha. SenPro is obviously on the bottom with how they turned the game into.

Not really sure how to interpret "best pseudo-gameplay", but if I had to guess, then that goes to X-Overd, a game that tries to be a standard RPG turn base battle game but in the end, ends up being another auto battle with strongest skill set as default where you get a bunch of skills you'll never use.

My current main games are BGR and FKG. I do like BGR more than FKG. I dropped X-Overd and Osawari already and in process of playing SenPro, but likely to drop soon.