NBA 2K15 definitely has NBA Live 15 beat on the gameplay aspect, especially after seeing this video about the popular MyCareer mode.
Per Chris Smoove, we get an early, inside look at what the MyCareer mode will look like. Via Smoove, your player will start his career undrafted. There will be no rookie showcas or having a rival like Jackson Ellis.
You also start the season in January instead of October, and will also get to experience free agency the following offseason. Another addition to 2K15 MyCareer is you can finally pick what voice you want. There will be two options.
Here's what the opening cut scene will look like:
https://www.youtube.com/watch?v=m5tKnQvQBo4&w=620
Here's this, too:
https://www.youtube.com/watch?v=TpW-3IUp3aI&w=620
Does this make you want to get the game even more?