I'm not sure you're supposed to like Revy. She's clearly seriously damaged and acts like a sociopath to boot. The only reason she thrives in Roanapur is because it's an environment where said traits tends to be rewarded.
In a way you are supposed to like Revy, and the Lagoon company to an extent, because they are seen as the lesser evil compared to some of the people they are up against. It falls flat, because she and environment supports the whole nihilistic, sociopath mindset. Yeah, sure she mellows out over time, but even with the development she gets, still not fond of her nor a majority of the cast. When you're cast is composed a slighty different variation of nihilistic sociopath or psychopathic killers and criminals making grand speeches about how everything is pointless (that we are forced to listen to and agree), than what's the point of being invested in any fashion? Especially when you claim things are pointless, but you keep control or doing things, because the "thrill", money, or cuz you're bored. Even Rock becomes a nihilist of some kind. The "nice" variation still does not leave a lot of diversity.
The only characters I like are Garcia, Fabiola, and Roberta. They at least get a bittersweet end to their arc and make the wise decision to leave the shit cesspool that is Ronpaur. Ironically, the type of environment and people Ronpaur thrives on would be its own undoing if characters like Johan Libert, Joker, Junko Enoshima, or Kun Lan set foot in the city. All 4 of them would burn it to the ground and leave no survivors. Though Johan would happily take Hansel and Gretel under his wings. Junko would leave a few "survivors" only to spread despair. And I already mentioned on a different thread if the Punisher ever got involved.
And while I haven't played WET(and likely never will), "Revy but even more unlikable" is quite the burn.
Because the burn is true. Both start with an R and has 4 letters in their names that rhymes. Both have bitchy, reckless, attitudes and dual weild pistols. The only difference being Revy has few "humanizing" moments. Rubi gets nothing, but we're supposed to like her just because she is "bad ass" and "takes shit from no one!".