Eric Clapton's best "Crossroads" was on "Wheels of Fire". The speed version. The slow versions like in Michelob commercials sucked. I have it on MP3 and listen to it. All of Cream was amazing together. Jack Bruce and Ginger Baker were as key to the group as Eric. Saw them once live.
Also the only legit version of Layla is the original with Dwayne Alaman and done fast.
Crossroads is simply the greatest guitar solo ever recorded. That it was live is even more astounding.