Well, as a high hi-handicapper (in the 20s!) Ive used a number of balls as my "experience" within the game grew.
I started with using what ever was in my bag or what ever was the cheapest at the shop. Then I tried the unspinable Bridgestone E6 and well, I could spin those like they were going out of business! :)
I then tried the Noodle balls and loved them. The feel off the face was great, that ball just felt and sounded perfect.
Then one day I found a few Pro V1's on the course and played with them BUT thought they were not much better than rocks...plus I didnt think they would do anything for my game considering my golf journey had just started. So I continued to buy Noodles off ebay and continued to love them.
Then one day (yes, another one day:) I splashed out and bought a couple dozen ProV1's off the interweb and fell in love with them almost straight away. I guess the difference between now and before was my game had actually progressed somewhat since I first tried the ball and could now manage to strike the ball much, MUCH better than what I used to do.
The difference was almost immediate! The balls start to grip and stop on the greens AND Ive even managed to get a couple to spin backwards! While Im still slicing and cutting like a pro, when I do get the shot right (which is happening more often now) the sound and feel off the face of the club is just as good as what the Noodles felt. Ive used both the ProV1 and V1x and to be honest, I cant tell the difference between either ball!
As for swing speeds...hell, mine is just as slow as the next guy yet when I connect I can get up around 260 to 280 yards off the tee! I dont have an overly fast swing (except when Im trying to be a he-man and end up slicing the hell out of the ball!:)
But anyways, do yourself a favour and get a few dozen off eBay. They can cost you next to nothing so you dont feel too aggrieved when you send more than your fair share in to water!