I was always more of a racer then a crasher, but I think I have enough crash experience to give my opinion, however my opinion is split on this one!
Which Burnout game has the best Online Crash mode?
I like both Burnout 3: Takedown and Burnout Revenge for crash, I don't know if I can pick a winner, here are the pro's for each game;
Burnout 3: Takedown's crash mode had coins to collect to give you extra cash bonuses, multipliers and the dreaded heartbreaker. You would rack up insurance damage and could use aftertouch and crash breakers to cause even more destruction.
Burnout Revenge removed the pick ups, but had immense crash breakers. Crashing on Burnout Revenge was very popular, even leading to a website being dedicated just to Burnout Revenge Crashing! BurnoutCrash.com gives video tutorials for all of the crash junctions, and although the forum itself is no longer active all of the video tutorials are still there, and it's well worth a visit if you want to learn more about Crashing on Burnout Revenge.
I enjoyed both of these game modes as a break from racing or road rage, as a fun little distraction. I was never a hard core crasher, so for me it's hard to pick between them. However I prefer the old style Crash mode to Showtime which just isn't the same thing at all!
The online Crash modes in Burnout 3: Takedown and Burnout Revenge tie for the best online Crash modes in the Burnout series.