The best replacement for 1.7 is 1.9 twist.

The best alternatives to 1.7 are rated as following:
★★★★★  1.9 twist
★★★★  1.6 roller rockers
★★★  3.4 oz
★★★  1.8 macbook air
★★★  1.3 macbook air
★★★  3.4
★★  1.9 astra
★  2.5 ghz
★  2.5
★  1.6 rockers
★  1.6
★  45mm 1.8
★  1.8
  3.7
  3.6
  1.6 java
  java 7
  mmg
  1.8 rockers

Your alternative for 1.7 is not listed? Suggest!
Speaking about 1.7, one probably shouldn't forget about virtuemart.

Other search terms related to 1.7 and their ratings are:
★★★★★ virtuemart
You have in mind a companion for 1.7 and it is not yet here? Propose!



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1.7
1.9 twist
1.6 roller rockers