All these information are from reading threads online. I have not tried enough blades and I don't feel like it matters that much but basically this is what has been suggested again and again
Looping: Any thin 5 ply with Limba outer.
Blocking: Stiff, stable, 7 ply with harder outer
Pair this with soft rubber for control.
Offensive: Relatively fast blades with acrylate carbon has been popular
Examples are Viscaria, Hurricane Long 5, Timbo Boll ALC, Fang Bo Carbon
Best Control: Mostly all-round blade like Stiga Allround classic, Yasaka Sweden Extra, Donic Appelgren allplay
Best Carbon: Acrylate Carbon has been popular. See best offensive.
Best Speed: 1 ply hinoki, 3ply with two carbon(Gergely etc.), Nexy Akrasia
All wood: Korbel, PG7, Violin, Stratus Power wood, Clipper, Primorac, Malin Extra Offensive, Acoustic