I have types right now. In order of preference,
1 - MSA Sordin Supreme Pro X with gel ear pieces. One of, if not the best out there. Great noise reduction, great amplification, extremely comfortable, rugged / durable, mold well around glasses. Very expensive.
2 - Howard Leight Sport Impact. Have a couple sets of these. I T&E'd a set for about 1.5 years even in the rain. Excellent budget electronic muffs. Don't fit everyones head size well, gaps with glasses.
3 - Peltor 6S behind the neck. Work well, when they worked. Electronics portion crapped out early. I know of numerous headsets that also had this issue.