DS is 3 and baby brother is 18months.
Older DS is a worrier, moody, very active/hyper! Talks non stop, always gets involved and is never on the side lines. He is a big personality and hard work.
DS2 (although much younger) is very quiet, cuddly, very very smiley, people always stop and say how lovely he is, calm, easy going etc etc
I am finding that relatives are starting to comment. Things like "Oh isn't DS2 so lovely....." and I wait and nothing else is said :(
I feel for older DS. We have to tell him to calm down, leave younger son alone, much of the time. I have made a big effort to really big him up at the moment after a few bad days with an older great grandmother who told him he was "the naughty one"......to be fair he did tell her he wanted to chop her legs off 
Any advice would be great.