Going wide ZD 7-14, PL 7-14 or mZD9-18

Just looking for opinions. I have the Olympus ZD 7-14 and know it is an excellent lens (no CA), I have an adapter and it does focus reasonably well with the OM-D although heavy(ish). Does any one have experience of either the Lumix or 9-18 and can compare with the ZD 7-14? Are either as good? I am thinking of lightening my load when travelling next month.

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Jerry
http://agbr.smugmug.com