Guild Wars 2

I am new to Guild Wars 2 and the forums and I really enjoy the PvP aspect as well as the Heart of Thorns PvE. My only problem is once every 10(?) games I get matched against someone much better than anyone else. Yesterday I was playing unranked with people Deer level as that is my rank and a thief on the enemy team was dominating everyone… I whispered him and asked him how he is so good and he told me he is Dragon, I then checked the wiki and that is the best rank… Why am I playing against him? It is just plain unfun as there is nothing you can do, thankfully something positive came out of it as he agreed to help me get better at my main class, thief but most of the time it isn’t fun at all and you just wish for the game to be over.
Earlier I had another experience where a Mesmer and Thief both had the Phoenix finisher, I got sick of it and left as I was getting killed as soon as a slight trace of me was seen. I noticed that it is when there is one person who is Deer and then the other person joins their party they can play freely on the other person’s rank which isn’t really fair. My suggestion is that the party gets put into the higher ranking persons rank, since then it only ruins 1 persons game (other person in the party) rather than up to 8 people.