hi, the best study of platonic language i know is still riddell's digest of platonic idioms, in the back of his apology edition:https://archive.org/stream/apologyofpla ... 8/mode/2up
socrates doesn't always win btw, he gets annihilated in the parmenides where plato raises heaps of problems with his own theory of ideas. people are often also saying in the dialogues how annoying socrates is being. he was a v strange guy. nevertheless i paused a long time a few months ago in front of the stoa of zeus eleutherios in athens imagining him doing what he did in that little space...
i took a phil degree at uni, and read plato almost every day (and in fact took up classics as a result of philosophy), and so am too biased in his + socrates' favour to give a reasonable account of his interest as a writer, others' views here would be better guides. nevertheless i think you could definitely read plato without getting too deeply into the philosophy, just as you could read herodotus without going too deeply into the history. but once i get sucked in to a text i tend to want to know as much as possible what the text is saying, beyond what the simple dictionary definitions + syntax parsing reveals, and if that's you're inclination too and you don't want to get too involved in the philosophy side, perhaps look at other fields like the 10 orators. lots of great attic but also lots of variation across the 10 and of course lots of good real-life fact stories at the centre of the disputes.