Will Gears 2 outsell Gears 1? Could Resistance 2 outsell Gears 2?

[MorgZ]

Surely Gears 2 will outsell R2 comfortably.

Normally good sequels to good well selling games sell more. Expect the same to happen with both of these games.

Why do people always make it a battle. Both will sell very well and be commercial successes but gears 2 will sell more.