As I decided to TR my old rogue into something new (namely TWF 13 Rog/6 Mnk/1 Fig) it got me thinking if dex-based shortsword (with the core Ninja Spy enhancements) user would be able to stand toe-to-toe with a str-based build. I would be investing somewhat into Dex anyway (21 for Improved SA feat) so I thought why not go all the way.
Basically I'm deciding between a brutish build, starting with 17 Str/16 Dex, 2 level-ups into Dex, rest into Str, taking both Improved SA and Overwhelming Crits, or a more subtle one with maxed Dex and 14-ish starting Str, dropping OC along with Cleaves and taking 2 PL feats and Precision (maybe even dropping PA and Imp. Sunder as it would have poor DC from low Str). The first one is rather feat-starved, no room for barb/rogue PL, the second one on the other hand has feats to spare.