We live in LA so Mammoth Mountain is relatively close to us. Even though it takes us 4-1/2 hours to get there we will gladly drive to Mammoth for a quick weekend trip rather than go to Big Bear, which is only 2 hours away from us. Not only is the mountain so much larger, with much longer runs. But the drive home on Sunday is easy. Driving back from Big Bear on a Sunday can take as long or longer than the drive back from Mammoth takes. I would rather head home on Monday than deal with that headache to be honest. If you love the mountains like I do you will enjoy yourself no matter which mountain you decide to go too. But if you need steep runs then Mammoth is the better option of the two.
Samantha Bewitched about Mammoth Mountain