The best replacement for 6.0.1 is 5.1.1.

The best alternatives to 6.0.1 are rated as following:
★★★★★  5.1.1
★★★★  ios 6.1
★★★★  6.0
★★★  6.1

Your alternative for 6.0.1 is not listed? Suggest!
Speaking about 6.0.1, one probably shouldn't forget about snowbreeze.

Other search terms related to 6.0.1 and their ratings are:
★★★★★ snowbreeze
★★★ redsnow
★ redsn0w
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6.0.1
5.1.1
ios 6.1