Ok so it's time for my review now!
I'll make it pretty short, don't worry! I'm just going to give my overall thoughts and opinions on the different switches.
Linear
Cherry MX Black
So, first off, I must say that I prefer a bit of feedback in my keys... so I'm not a big fan of the Linear switches - you just don't really know if you've actuated them or not, until you hit the bottom

It is quiet, so that's a good point... but I think I need some sort of tactile bump on actuation.
Very common for gaming keyboards - which I almost find surprising, give you can't tell if you've pressed it or not lol
Also, if you're "double pressing" it, you can't tell the point at which it starts, stops, and then starts being actuated. I think this would annoying me in practice...
Maybe it's just me...
Cherry MX Red
Just like the Cherry MX Black, but requires a little less force to press.
Starting to become more common for gaming keyboards.
Tactile + Clicky
Cherry MX Blue
Holy crap, these things are noisy (and annoying)

They feel pretty good, though! It's just that noise... would drive me and everyone else insane lol
Alps Grey
A much nicer clicky noise - much less high pitched. Still loud enough to be annoying when using a microphone (Ventrillo user lol). But I actually quite like this one. The noise is almost soothing - I'm a game programmer, so I do a lot of monotonous typing late into the night lol
The best thing about this one is the feel - it's not got too much travel distance after actuation, which I like, and you can definitely tell when you've actuated it.
Too bad I don't think I'll ever find a keyboard that I like that actually uses these switches
Tactile + Non-Clicky
Cherry MX Clear
Not too bad - I really like the fact that they're silent. I'm still not a huge fan of the 4mm travel distance after actuation that all the Cherry switches have... I kind of prefer a binary "it's pressed or it's not" type of switch... But I'd have to say that this would be my favourite of all the Cherry switches.
Cherry MX Brown
Just like the Cherry MX Clear, but requires a little less force to press. Also, I think the tactile bump could be a little stronger...
Alps Black
Oh, I actually quite like this one

It feels pretty good! Still has a noticeable tactile bump, and isn't too loud. Travel distance feels about right.
Once again, the main problem is probably that it'd be hard to find a good keyboard with this switch in it...
I prefer the feel of the Alps Grey a bit better - but I like how this one is quieter.
Alps White
Similar to the Alps Black, but just feels a little more "squishy"... I don't like it as much. But it's still ok.
Cherry ML
Heh, this one is kinda fun to play with. Much smaller travel distance, would be great for a laptop keyboard too, given the smaller size. Actually feels quite nice.
Conclusion
Ok, so my 3 favourites are...
Alps Grey - Overall, this one feels the best! A little too noisy, but I could probably put up with that...
Alps Black - Still feels pretty good, and is quieter, so that's great. I like this one.
Cherry Clear - Doesn't feel as tactile as the Alps switches, and has too much travel distance after actuation. But on the whole, it's not too bad. At least it's quiet
I hope my review is helpful to someone...