I much prefer SC2, but I agree League of Legends is really designed to be watched in a way that StarCraft 2 is not.
A StarCraft 2 game can last anywhere from 5 minutes to 2+ hours. And they tend to stack so a series might take 20 minutes or 5 hours. Games often snowball from minor advantages so only a seconds of that may be really important.
League of Legends games on the other hand have some back a forth and are bound fairly closely to 25 minutes at top play. Allowing for more bite sized games, you can also jump into the middle of a match and understand what's going on more easily. Even better, lower level games tend to more closely match top play like other sports.
A StarCraft 2 game can last anywhere from 5 minutes to 2+ hours. And they tend to stack so a series might take 20 minutes or 5 hours. Games often snowball from minor advantages so only a seconds of that may be really important.
League of Legends games on the other hand have some back a forth and are bound fairly closely to 25 minutes at top play. Allowing for more bite sized games, you can also jump into the middle of a match and understand what's going on more easily. Even better, lower level games tend to more closely match top play like other sports.