Because you are a student and not a troll, I will give my own opinion.
I prefer classic
First:
Retro games (like the 2600) seem to shine on 2 player games like Maze Craze, Indy 500, Slot Racers, Surround, etc. They had great gameplay & engaging 2 player games. The graphics were simple so the programmers focused on the gameplay. Gameplay is what makes a game, no flashy graphics to hide poor controls or crappy gameplay.
Second:
Retro games are easy to pick up and play without having to spend the better part of a day figuring out the controls or objectives.
Third: Atari 2600 is still very popular. How many xbox360s will be around 30 years from now?