Yes, that's correct. I'm the youngest, the eldest is the prodigal son and the middle has disowned us all. I'm really interested in what you have to say about this.Am I reading this aright Revolucionar - there are 3 boy; you are the youngest, the 'problem' brother is the middle one and the eldest is viewed by your parents/the family as 'the prodigal son?
If this is correct order of age (and maybe you can confirm?) I think there may be something else also going on here that could also be beneath all this noise apart from the issues being fedback to you on by others here.
I am one of 4 brothers (plus a sister). The dynamics of this never go away - they just find new circumstance to feed on. I'll say no more until you feedback on the above.