Denso Iridium Power are the ultimate in my opinion, i use these in mine, sorted my low rpm miss fire and runs like a dream since with a smoother idle plus they last alot longer. I took a 4 year old set out mine the other months (mine gets driven very hard 24/7) , looked still like new after maybe 40k-50k of miles, but i swopped them anyway. I used opie oils to get mine recently, very good service.
I did use boosh plugs once in my 172, but as stated i dont rate them and they were highly screwed when i took them out.