My list (for what it's worth)
1. H - hands down, my fave. IV is best, but any method is good except oral which is wasteful. The rush of IV H is the pinnacle of any and all drug buzzes I have ever had. Follow it with a nice big spliff and you are in paradise. Who needs the Garden of Eden? :D
2. Morphine - a pretty distant second, morphine was my first true love, and the alkaloid that originally hooked me to the opes. Though it is very euphoric for me, there are a few negative side effects that can dampen the enjoyment until your body gets accustomed to it. This is mainly nausea, vomiting, hangovers, and histamine-related effects like itchiness. But I never cared, because the buzz was a steel-toed kick in the head, very satisfying deep warmth, a lot of lucid dreaming, and even a psychadelic edge to it.
3. Oxycodone - not too far after morphine comes Oxy which is the opiate I have abused the most, and is definately a beauty, but has its limits. It is very euphoric snorted or eaten, lasts pretty long, and is much cleaner than morphine with less side effects, but I don't find the buzz quite as strong and satisfying even in large doses. I think my problem is that I build a large tolerance to it VERY fast and after using it for a few days straight, I can't get high off anything less than 120mg at a time. Shooting oxycodone is not that great....the poster who described the rush as "cool" rather than "warm" gave a pretty accurate synopsis of injected OC. Short but good, but not good enough to make it worth it, especially since it's so short when shot. It's much better to snort or eat it IMO.
4. Dilaudid - anything but injection (IV, IM, SC) is a waste, but IV shots are quite nice - very clean buzz, similar to heroin but even cleaner and not quite as strong. Very quick effects with not a helluva lot of hang time. If I was shooting 'em, I'd probably take 'em over snorted/eaten Oxy.
5. Methadone - I don't know what ranking methadone should get on my list, but 5th is probably about right. It can be a really great buzz if you take the right dose, and lasts a very long time. Not many other opes will have you nodding for 8 hours straight
8( ya know what I'm saying? So in that sense it's quite good, and it can be very euphoric and satisfying. Since oral bioavailability is high like 80%, oral admin is quite effective. The downside is that it is eaiser to OD off than other opes taken orally, especially if you take it every day, and then suddenly take a double dose or larger to get high. This can be dangerous, so it's always best to start small and gradually work your way up.
anyways, that's my list.
I'd LOVE to try some of the other yummy opiates that have been mentioned, but alas.....I just don't have the balls to rob a pharmacy