I really enjoy Forevermore, it is the best version of the three we have. To me, that's the real album.
I like it more than Kaleidoscope, but only by a little bit. It doesn't come anywhere near the greatness of the band's first three albums.
The Breath of Life is good but the weakest entry into the TA canon. It just seems mostly redundant, even if there's bits of unique music on it compared to the 'real' version (Forevermore) and there are sections of it I like over Forevermore where it cuts out the bloat of Forevermore, but on the whole I prefer Forevermore over TBOL. Haven't really gotten into the Ultimate version that much, I think I only listened to it once, and didn't like the flow of it when I listened to it.
I wish the Ultimate version was more about collecting the strongest parts of both albums instead of just including everything that's on both albums. Or you know, they should have just done that in the first place and released one strong album.