Pros:
Rhen Var Citadel
Better Kashyyk map than Battlefront II's (beach)
Rhen Var Cavern
Bespin
Space Vehicles in ground battles
AI play as heroes
Naboo but i'ts day time
JubJub cheat code
No 2- flag
Dedicated mode without server manager
Command post announcements (such as "The enemy have captured the carbon freezing chamber")
More NPC variety
Cons:
Horrible campaign
Less classes than BFII
Less features than BFII
Boring Galactic Conguest
No 1 - flag
A few horrible maps
No running
Useless crawl mode
Horrible main menu
Less variety on heroes only Mace Windu, Count Dooku, Luke, Luke Pilot, and Vader.
I don't like BF1 too much, I do lilke how Clone Wars is in EP2 style, rather than EP3...
Battlefront II is TWELVE times better than the first one!
It seems this is less of a 'pros and cons' list as it is a list of 'what did Battlefront II do better'. I don't think it's particularly fair to compare an earlier title to a later one: of course the later one is going to have more features.