I get that it might lack the prestige to some of Seattle vs Portland, or New York vs New York, but for my money there simply is no better rivalry in MLS than RSL vs LA. It is as much about how things are done within the organizations as it is the battles on the pitch for me.
You have LA, the team that probably writes most of the MLS roster rules over the year, and given the investment AEG has made in MLS over the years it almost is understandable. The DP rule was created to allow the Galaxy to sign David Beckham, he wasn’t the first player the league discussed changing the rules for but he was the one that made it happen. Their current roster are mega DP’s like Steven Gerrard, Gio dos Santos and the best DP in MLS history Robbie Keane, with that they have European imports Nigel de Jong, Ashley Cole, Jelle Van Damme. They also picked up MLS stars Jeff Larentowicz and Mike Magee, which compliments guys like Robbie Rogers, AJ DeLaGarza, Gyasi Zardes, Jose Villareal, Baggio Husidic and Sebastian Lletget. I am always amazed how they keep this type of roster within the cap, but that is the magic of allocation money.
On the other hand, RSL have brought in players but never break the bank guys, the biggest signings in the club’s history have come in recent months with the arrival of Juan Manuel “Burrito” Martinez late last year and the return of Yura Movsisyan this year. The core of the team are the guys who were brought in almost a decade ago, Nick Rimando, Javier Morales, Kyle Beckerman, and Tony Beltran even returning guys like Chris Wingert and Yura. Then toss in some of the young players, like Glad, Plata, Allen, and guys who have yet to make an impact like Kavita, Holnes, Acosta, Attinella, and others. RSL has pushed the salary cap not with the huge signings but by raising the salaries of their veteran core, which probably takes as much work as the mega DP route that LA takes.