Myths perpetuated by people who never actually watch the NBA.
I would rate the NBA's "Thug Quotient" as far below that of the NFL. Most of the game's biggest stars are more GQ than they are street.
The defense in the NBA is exceptional. After the influence of Riley's Knicks it was too good (or at least too physical) for a while. Rule changes were adopted, the Phoenix Suns proved that you can create a lot of buzz by scoring tons of points, and now there is a pretty good balance between offense and defense. If you want proof of the great D, look at how great college scorers (JJ Redick, soon Kemba Walker) struggle so mightily to get the ball in the basket in the NBA.
College players do try harder during their regular season, but that is just the nature of the game. No sane person could bust their *** 100% for each and every game during an 82 game regular season. Crazy people like Kevin Garnett, Kobe Bryant, and Michael Jordan pull it off, but many NBA players take plays off here and there. But once you get to the playoffs the intensity in the NBA is unreal.
As previous posters have said, if you want to watch the most talented and exciting basketball players in the world, you watch the NBA. If you are into school pride and the spirit of competition, college hoops will do, but I have found the college basketball product very lacking ever since the best players started going straight to pro or 1-and-done.
The NBA has done a fantastic job in the last 5 years getting some of the bad apples out of the league. Most of the thugs have been blackballed by NBA GMs (Iverson). ESPN had a great article about this a few years ago.
I was making fun of the NBA not more than a few years ago. I tuned in to watch the Lakers/Celtics final back in 2008 and that completely changed my mind.
I chuckle at how uniformed I was regarding this league and how people still are like I was before.
If the owners can get rid of guaranteed contracts the NBA will go through the roof. The quality of play will dwarf anything that was seen even back in Magic, Bird, Jordan days.