the esp8266 prg is 8.67k compiled with c on a pic . I will port it to arduino and compare
well I did it. for what it worth the two platforms seem comparable for C code anyways
on a pic18f45k20 my esp8266 simple server pgm in mikroc 8.7k using 1.4k ram , arduino mega 8.67k 1.6k ram .
pbp3 not yet working still trying although I can get a flaky version going with <3k flash and ram ? (i'm not going to add it up )