Never used any of these, never had a Rega, but I have done a bunch of turntable mods from a Basis all the way up to building my own table. http://www.theanalogdept.com/images/spp6_pics/C_miller_web/Miller_carbon_5.jpg
You might want to do what I just did and search around for reviews and forum posts on these mods. There's also a YouTube comparison video.
What I can tell you, just based on my experience and without saying which is better, I would be shocked if all three of these aren't a really big improvement. That's because, everything I tried on my Basis was a big improvement. And that was a $2500 table. You might think at that price they'd use high quality parts. Guess again. The reality is the total parts cost in most turntables is probably something like 10% of the retail price. If that. So its really easy to upgrade something like a bearing very affordably and have it be a whole lot better than what was in there.
The other thing I can tell you from experience, consider not only the cost on the front end now but on the back end later when you go to sell. The one that might look like the best value now might turn out to be pretty much worthless when you go to sell later. Where the one that costs more now, might be only a little better sounding now, but a whole lot better selling later. Because the guy buying, he's not buying the part, he's buying the table. And he wants the best table. Not the one with the second best upgrade.
Either way though you're upgrading something of value. Not throwing money away into a digital sinkhole. And that's for real.
You might want to do what I just did and search around for reviews and forum posts on these mods. There's also a YouTube comparison video.
What I can tell you, just based on my experience and without saying which is better, I would be shocked if all three of these aren't a really big improvement. That's because, everything I tried on my Basis was a big improvement. And that was a $2500 table. You might think at that price they'd use high quality parts. Guess again. The reality is the total parts cost in most turntables is probably something like 10% of the retail price. If that. So its really easy to upgrade something like a bearing very affordably and have it be a whole lot better than what was in there.
The other thing I can tell you from experience, consider not only the cost on the front end now but on the back end later when you go to sell. The one that might look like the best value now might turn out to be pretty much worthless when you go to sell later. Where the one that costs more now, might be only a little better sounding now, but a whole lot better selling later. Because the guy buying, he's not buying the part, he's buying the table. And he wants the best table. Not the one with the second best upgrade.
Either way though you're upgrading something of value. Not throwing money away into a digital sinkhole. And that's for real.