Well the is110 is actually a wider board and is probably more akin to the 133 than the 111 making it a great all rounder.
Personally I would go with option 3 but only replace all 3 if they really are either knackered or slowing you down. While the boards have come on over the years there is not a huge amount in it, at least not enough that would be shown by my skills. With option 3 you then have plenty of time to demo possible replacements and make a more informed decision.
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