Politifact is rating the Republican candidates on their truthyness.
They’ve also done the same for Hillary Clinton and Bernie Sanders, links at the bottom.
Out of 53 statements by Kasich, 16 were rated as mostly false, flat-out false, or liar, liar, pants on fire.
Of 48 statements scored for Trump, 36 were rated false or worse.
I have no idea to what degree they were cherry picking statements to create a certain image. The full article, including all the candidates is here
You can click on the links below for the two mentioned candidates to see what statements were scored and on what basis.
Hillary Clinton truthometer, here
Bernie Sanders, here