Clarke is nowhere near Ponting as a captain or a player. He at best can be a good test player, averaging around 50 when he retires. His ODI batting and T20 batting, at the beginning was pretty good, has now gone down the drains. Yes, I know he had a good series in Dubai recently, but considering how flat those pitches were, and how slow the runs were scored, and how mediocre the opposition was, I would not buy it till he continues to impress in ODIs for his 2 year lack of runs.
I wish Australian selectors instead concentrated on some other guy, perhaps Mitchell Johnson, who can lead by example, as the next captain. Clarke has been experimented with, allowed tonloads of liberty, coached from kindergartens to be the next captain, but has hardly shown the requisite promise.