Szlia
Member
There are different types of commentary. I really enjoyed Blechy's commentary during the Mario races, where he talks non stop through a very prepared and informative script, but I also like humorous commentary like, say, Spikevegeta. For longer runs like the one fo FFIV it's pretty neat also how they can go in depth about the underlying mechanisms of the game, especially when it comes to hidden or broken things (like, in FF, how the check made to run from battle is fubared with each character checking a different wrong place in memory).