I'm not sure which benzo would be most enjoyable for the average person. Haven't had a ton of different ones, and I know I diverge with other people who enjoy benzos hardcore in that I hate everything about xanax. It sounds like you already found one you enjoy, though. You could just stick with that? Please take benzo addiction and withdrawal seriously, though. That shit is NOT a joke, and it is NOT something you ever want to have experience with. Even the blackouts you're talking about aren't necessarily always going to be pleasant or harmless experiences. People can sometimes get some serious dysphoric feelings on super high doses, or act crazy (aggressive, or insanely reckless like driving when you barely even know you are).
If you do still want to try other benzos for recreation despite all that (and despite finding one you enjoyed) just make sure that the things you try are actually benzos. Eszopiclone, as already said, isn't a benzo at all. It's actually in a family of drugs called nonbenzodiazepines. And if that's a group of drugs you want to play with, find yourself some zolpidem or zaleplon and make sure you've got an empty stomach.
I don't want to enable a discussion started by someone who was trying to get high from Z drugs and then asked "how to abuse benzos" but I think that xanax (alprazolam) is probably broadly seen as the most "enjoyable" or recreational. I put this down to its potency and it's fast action which can loosen a person's inhibitions and make them more sociable and it is or was mentioned a lot in pop culture, along with "lean" (codeine and promethazine syrup added to grape soda, 7up or other drinks and jolly ranchers. It does sound nice and isn't something we really get in the UK due to that syrup not being available really and we don't have jolly ranchers. Maybe it would work with skittles).
You'd hear rappers talk about drinking lean, smoking a blunt, popping a couple of xanax bars and having a drink with it. This is of course a highly dangerous combo but I think that xanax became big as part of this subculture, like ecstasy did with rave culture. But it has caused many problems of course.
I would say that I have enjoyed alprazolam - benzos are used as a street drug here generally and diazepam has always been a favourite (it used to be temazepam) and it is synonymous with street users who aren't buying diazepam, they are buying any number of chemicals - sometimes benzos and sometimes not - and are using them to get through the shittiness of life and to just feel different/perhaps feel nothing. But I really have used benzos as a way of self-medicating and I have enjoyed them due to them helping with anxiety but the addiction to them is a pain in the ass due to trying to source them.
Anyway, alprazolam has been enjoyable because it works quickly, helps people to be sociable and not too sedating. Due to its short half life it is highly addictive because of the compulsive re-dosing that can occur. It is popular and I can see why,especially used in the cocktails I mentioned before. Alprazolam will potentiate the codeine in "lean" and will go nicely with a blunt. Adding booze is entering blackout territory but that's what some people want.
In sum: xanax (alprazolam) is probably widely considered the most popular and "recreational" benzo and is quite notable in pop culture. Xanax bars in the UK rarely contain alprazolam, if ever, but you can get real, branded alprazolam online which I've never seen come on bar form. I remember having a guy who had different coloured bars and I had a blast with them, back when I partied and when I was single and being promiscuous. No idea what was in them as this was a good 7 years ago - they would likely contain bromazolam at the moment which seems to be the most common in all street benzos, the most common street benzos being "street valium". In the states, most xanax bars now contain fentanyl or so I've read, as with just about any pill purchased on the street.
So I'd say that alprazolam would be the most "fun" of them but also the most dangerous and from a harm reduction point of view, I wouldn't recommend that anyone get into using it. As someone with a benzo habit, even I get loopy with them - they are quite peculiar compared to other benzos but they are all different. It is the quick onset, lack of sedation, increased sociability and what it is likely to be mixed with that makes it popular I suppose.