Its all about the teeth, really: everything else is secondary.
Yes, gay men in general tend to be more spoiled and picky about what constitutes a "great" BJ than most str8 men. A good BJ is pretty much expected to happen among gays, while women still tend to view it as a special treat they may or may not choose to offer, so str8 men are a bit less picky and only too happy to simply feel a mouth on their cock.
The gay or bi men who take you up on your "drunk" offer will be more accustomed to receiving skilled bjs. A "skilled" blower knows how to apply suction, tongue and lips in various ways without ever scraping a cock with their teeth. This is more difficult than many people think: the best bj artists are blessed with a certain type of mouth and a born instinct of how to use it. One can learn to be a decent blower, but I don't think you can learn to be "great" unless you have some inborn advantages. Life isn't fair, in this or other arenas.
One thing I can tell you for sure, nobody wants an inept drunk to get his teeth anywhere near their cock. If you seriously only get hot for men when you're blind drunk, be damned sure you aren't so far gone that you can't at least keep your teeth from scraping your partners cock, or the tryst could end very badly. I've seen this "I only want guys when I'm drunk" BS play out any number of times, and the "straights" who participate fall into just two groups.
Group One has just a passing interest in sex with men: the drinking lowers their inhibitions just enough to enjoy it without thinking twice. These guys aren't particularly invested in having a man-man experience: if an opportunity arises, they go for it, but they don't have any hangups about it.
Group Two has deeply rooted issues with their desires. They wanna drop to their knees and choke on cock every second of their lives, its all they can think about, but they're wracked with guilt and shame over it. The more self-hatred they feel, the more they want it: the shame makes it more forbidden which makes it more attractive. This type needs to get drunk almost to the point of unconscious before acting on their desire, but once they do, they are often AMAZINGLY good at giving blowjobs (and/or giving up their ass). Its unfortunate how they torture themselves over it unnecessarily.
You kind of give off a Group One vibe: more or less a frat boy who wants to walk on the wild side occasionally. Nothing wrong with that, you just need to find partners that are as casual as yourself, and who aren't expecting a miracle blowjob from you (you both get off more on the idea of what you're doing than the act itself). In such cases, all you need to worry about is keeping your lips over your teeth, and let the rest
naturally.
Good luck! :cheers: