Clicksors average per click that you'll make is much lower than AdSense. Clicksor also pays via PayPal as well. They are a nice company, but they need more advertisers to the amount you make per click is more.
That doesn't make much sense. If you think about it, just because they pay within 15 days and the min payout is $50, that doesn't mean it's better. The earnings could only be $0.00000000001 per click all you know. Although I know it pays much better than that, you just can't say a program is good just because they pay within 15 days and have a lower payout than another program. Adsense has a $100 min payout and another program that you join could have a $20 min payout, but you could get the same amount of clicks with both of them and still receive the $100 min payout quicker if it pays over 5 times more than that $20 min payout site.