Absolutely. "Recommended" blu. I bloody love the colour timing on the new TG,tB&tU for instance, I think it improves the film. There's also the issue of blu-ray regions. I appreciate that we're talking specifically about the quality of the release, but if a fantastic and utterly gorgeous blu-ray is Region A locked then, for me, it may as well be a YouTube rip. I do not own a multi-region BD player and I've no intention of buying one. TBH, even though all of my players can play all DVD regions I try to keep my region 1 purchases to an absolute minimum. What makes a disc essential will probably differ from person to person. See, I don't care about original mono soundtracks or the missing 30 seconds that have only ever been seen on the Japanese VHS from 1982 (I'm not saying those things aren't important btw, they're just not a dealbreaker for me). But I DO care about an English dub when it comes to Spags. In every other instance of global cinema I'll take the original audio and subs but Spags are set in America, populated by characters who are (largely) American. I can't watch them in their original Italian. This extends itself to a further weird quirk where I'll prefer an English-language territory release over a non-English-language territory release. For example, I'll keep my Blue Underground blu of Django Kill over the German FilmArt blu of Töte Django despite the screenshots appearing to favour the FilmArt release. Again, this strange behaviour towards world cinema only covers Spags. But, it's these little subjective tics that will have us all preferring different releases for different reasons, even if the picture quality is undeniably superior in one release above all others (and even then, we're back to the TG,tB&tU conundrum).
And I'm probably alone in thinking that the Westerns Unchained blu qualifies (for me) as a must-have. Yes, the quality is like watching YouTube through an old dial-up connection with a burlap sack on your head, but... Twenty-five films on one disc! For a fiver!