Lakers played the Nets and Pistons in the Finals too ... Not to mention those were great teams.
Even if we're going off star players, in championship runs Spurs went through teams starring Lebron, Kobe & Shaq, Garnett, Nowitzki, Nash & Amare, Gasol, Sheed & Big Ben, Allen & Lewis, Carmelo & Camby, D. Wiliams & Boozer, etc.
I'm literally laughing at the idea of '03 being a weak championship.
Call it an easy Finals match-up if you want (though I'm not exactly sure what that makes 2011 for LeBron), but that Spurs team had no business winning it in the first place...thus it is impressive.
A lot of things just went right for them that year. Duncan was at his very best, Lakers were coming off a 3-peat and Shaq just wasn't as good as he was in his other years, faced a young Suns team in the 1st round, faced the best offense in the league in Dallas, but Dirk and Nash were neutralized in that series, both shot 43% from the field, the Nets team just had 0 answer for Duncan, just like they had no answer for Shaq & Kobe the year prior (both had their best Finals series in 2002).
The Spurs weren't that great on the offensive end, but their defense was ranked top 3 in the league, and along with Duncan that carried them all the way to the Finals, where the opposing team really didn't have an answer for Duncan. Also a fun fact, every series the Spurs won in 6 games.
Another fun fact is that they've won a different way each time - 5, 6, 7, and 4 game series.
Spurs have won with a completely different roster than earlier. They've rebuilt while for the most part keeping under the luxury tax. They do that with smart scouting, player development and choosing their players wisely. They don't have the luxury of a great city to attract free agents or tons of money to pay players. That they're still contending after 16 years is amazing - their consistency is excellent. The fact that they've won 4 rings with not that much talent overall (compared to other teams) is to be admired - not put down.
If you take a good look at the team, (not counting Duncan and Manu who are sooooo old), there's really only Parker and Leonard who are good. Green was a scrub who was bouncing around the league, Tiago is sooooft - most of their players (except Diaw) are one-dimensional. They make up for that with chemistry, playing smart - the intangibles. Unfortunately, that's not enough come playoff time when talent rules and EVERYBODY is trying hard.