My first gas plane was the H9 Extra 260. Easy to build and most importantly to me is there is numerous threads on FG and RCU about the plane. They answered every question i had and alerted me to problems that would come up. More times than not, i had the problem fixed before i even had one. I wish i had gone to gas a long time ago. I really enjoy the gas motors and planes vs glow.
You are going to get many different opinions on this subject.
I learned a lot from my H9 Extra 260, which i will go ahead and recommend to you. WH planes are good ones alos with much information available.
Im going to be buying an AM Yak this week. That is another good plane.
Good luck with your decision