Here are some ground statement for your choice:
1) SC2 requires higher system requirements thus it is much more beautiful
2) Blizzard is not planning on making WC4 in the next 5 years+ they are working on Diable+WoW and then comes theyr new project called TITAN. So basically if you want to play WoW and know more about the history of main characters there, you can try WC3, other then that it's all the way for SC2
3) To summ up:
WC3- 4 races, each has 4 heroes to lvl up+ has a neat game called DOTA
While SC2- no heroes, 3 races, better graphics and is predicted to be the future of esports, in case ur looking into competing.
1) SC2 requires higher system requirements thus it is much more beautiful
2) Blizzard is not planning on making WC4 in the next 5 years+ they are working on Diable+WoW and then comes theyr new project called TITAN. So basically if you want to play WoW and know more about the history of main characters there, you can try WC3, other then that it's all the way for SC2
3) To summ up:
WC3- 4 races, each has 4 heroes to lvl up+ has a neat game called DOTA
While SC2- no heroes, 3 races, better graphics and is predicted to be the future of esports, in case ur looking into competing.