While there are many excellent reviews here on this forum and on the www for many different harmonicas, including my first three acquisitions, here is my humble opinion from a beginner’s standpoint for my three harps.
SOUND
For my playing, which primarily consists of learning melodies of songs both new and old along with several kid’s songs, they all sound pretty darn good 
. As my ability to isolate notes improves, all three seem to do the trick. If I had to pick a winner among the three, I would probably choose the Special 20, though in my opinion, technique seems to be much more of a determining factor than the actual harmonica. I’m sure experts, like @Luke and others on this forum, are better qualified to hear the nuances between the three.
BENDING and PLAYABILITY
Here I give the edge to the Special 20, which seems to bend and play most consistently right out of the box, though granted I’m still unable to hit specific bends with a great deal of reliability. I had to tweak several of the holes on the 008k in order to get them to play right; and the Lee Oskar seems to have had a wider gap on the two draw out of the box, which made it easier to hit the 2 draw half step and full step bends, but required much more effort to get a solid 2 draw note (E on my A harp). The Easttop 008k has been the most difficult to bend with the exception of the 4 draw, which I eventually blew out, probably by trying much too hard on my Blue’s scale.
LOOK and FEEL
Here I actually give the nod to the least expensive of the three, the Easttop 008k. I love the bluish, almost turquoise color, and it is also heavier and feels much “stronger” and better built, kinda like a tank which has literally taken a beating and keeps on ticking. Both the Special 20 and the Lee Oskar seem much lighter and more flimsy, though this certainly doesn’t seem to effect the sound.
CASES
Again here my favorite is the 008k which comes in a zippered nylon case with an elastic band on the back which fits well on a belt or even on a finger for easy storage and access. I can’t really see carrying around either the Special 20 or the Lee Oskar case, though certainly both are likely perfect to keep them dust free and clean. I’ve opted for carrying my Lee Oskar in the key of A in my left pocket, and my Special 20 in the key of Db in the right. I’m sure though this isn’t optimal since they are likely much more subject to lint and other dirt getting in them.
COMFORT
I forget who it was, but someone else here in the forum said the Lee Oskar was a moustache grabber and mine did in fact give my moustache a few tugs. As a side note, my ten blow went out in my Special 20, and I after opening her up, I found a renegade moustache hair to be the culprit (since then I have shaved my moustache, gotta establish priorities!) 
. Overall, I have found all three to be pretty much equal in terms of comfort.
SUMMARY
For my level of playing ALL THREE are great and have given me hours of playing pleasure! I really enjoy the lower tone of the Lee Oskar in A, and while the key of Db on the Special 20 wasn’t what I originally wanted, I also have been loving it. I still take my 008k for a spin every once in a while but am basically limited to playing the higher or lower octaves since my 4 draw no longer works. Likely for more advanced players, who do lots of bending or Blue’s playing, the Special 20 or Lee Oskar are much better, but for me, all three do the trick and are well worth the money!
and as many have said a big advantage to the Lee Oskar is visibility of both 1st and 2nd position keys. I’ll have to see how they hold up over time, but they are definitely much more apparent from the get go!
, this isn’t such a big deal. I do like 
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on it that I saw 
the tiny gray hair stuck between the reed and the comb. A pair of tweezers quickly solved the problem.
, but I have some I can send you at 10 cents a yard + shipping 
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