How do you pronounce "catch"?
Pronunciation of Catch
I also pronounce it like "ketch" [kEtS]. I honestly don't know which pronunciation is in the majority in the US.
I always pronounce it as it as spelled, with the first syllable rather like the word "cat". I see no reason to pronounce it any other way.
I believe I normally pronounce "catch" as [k_h{tS] (or, to be technical, usually somewhere in between [{] and [a]). [k_hEtS] doesn't sound like something I'd say but I've heard people use that pronunciation before.