Good choice with the Ronson. I have to say I have a nice Xikar single flame torch and am extremely happy with it as it is very reliable.
To me, the biggest difference is that a tri flame will light a cigar a lot faster but will also burn through fuel 3 times as fast.
I personally like to take my time when lighting a cigar so that is why I went with the single flame. To me, it is all about personal preference.
Welcome to Puff!!