Before anyone tells me to use the search feature, shove it, cause even if there has been a thread like this before, we’ve got a lot of new people coming in for fresh conversations.
Basically, what do you think is the best feeling in the world that someone can experience? It can be spiritual, mental, emotional, physical, whatever.
For me, it’s when I have to go to the bathroom reeeeally bad, and then I finally go. Oh man, I feel like I’ve died and gone to heaven.
This one time, I was hungry, and I had a hamburger. That was pretty cool.
The serious answer? Love.
I’m suprised you guys didn’t mention an orgasm 
OK. I’ve shoved it. Now, use the search function.
I searched for the “search function?”, but couldn’t find it! 
I would agree that orgasms are right up there, yes. It also felt pretty good when I landed my first unispin! Or when I got my first check as the owner of my Piano tuning business!
haha! when I almost landed a 360 unispin yesternight (got my feet on the pedals, but then they slipped off 
)
or, going 45 mph on my bike down a hill 
I think that the first couple times I was single track muniing, just flying down a thin trail, it was amazing.
Eating good food.
Or, eating good food when your’re really hungry…
That’s a good one. Dodging trees with lots of twisty turns in the track…
That’s pretty much exactly what every person says who wants to start a repeat thread instead of bringing up an old one.
Because they’re too lazy to even look.
Anyway, one of us males has to mention how good it feels after you’ve nailed your nuts for whatever reason, and the pain finally goes away. That’s definitely up there. Orgasms are nice, but nothing beats making love to the person you are in love with!
Cuddling/kissing, the first drop to break-in a new uni part, The first muni ride of flying down a nice trail, first time making it up a bench or down a set, performing infront of people.
Hmm, theres a lot, but I think once your with someone you love, anything you do with them is up at the top.
“Yesternight.” Although an actual non-slang word, that’s the very first time I’ve ever seen it used; at least in the modern era. I usually just say, “last night”, the much more common usage. “Yesternight” was commonly used during Shakespeare’s time. Hmmm, to be pretentious, or not to be pretentious: that is the question.
Hehe, I use Yesternight quite a bit in my vocabulary. I dont type it much, but if any of my friends were on this site, they would vouch for me. =p
accomplishing a goal that you have been trying to reach for a long time-that sigh of relief when you know that you can finally do it
Jumping in my pool after working outside all day in 35 degree weather
All of the above
Of all the people to call me on that…I thought you loved me! 
The former I’d have to agree with as one of the better feelings out there…the latter, I’ll have to get back to you on.
the adrenaline rush of performing stand up.
The first time you coast a significant distance on your unicycle (over 3 meters or so). Gliding’s nice, but there’s nothing like the purity of coasting.
Jumping out of a plane at 15,000 feet, freefalling for 90 seconds, then having your parachute open. There’s nothing like it!