Vainamoinen: For the most part, absolutely. Certainly not the travesty that Uderzo made it in the earlier years this century. Then again, Asterix and the Magic Carpet (1988) still was a beloved part of my youth, so I can't crucify the guy wholesale. Though
my number one still is Asterix the Legionary, which is rather safe in Goscinny territory.
... yeah, Asterix in Switzerland is in the top 5. It's probably the one I still quote most. ;)
Matewis: Solid choice :) If I were forced to choose then I'd pick it as my favorite as well, though there are a few others that come close in my top5:
Legionary, Laurel Wreath, Cauldron, Britain, Switzerland
Symphony8: I was just about to make an indignant post until I saw the latter part of that paragraph :)
Matewis: As much as I love Asterix&Obelix, I think Tintin has aged perhaps a tiny bit better. Or at least it's a got more adult oriented content, like characters dying for example. Also, that dream with Rascar Capac's mummy come to life really, really freaked me out as a kid :P
You could also argue the opposite. Claiming that the political, and social satire, in Asterix, was more developed, more mature, more to the point. Racism and elections, neoliberalism, ecology, obscurantism and manipulation... They are straightforward plot points, getting their own albums. Not to mention all the smaller jabs at political or social issues, in the mere form of throwaway anachronistic winks. The Asterix albums function at more levels than Tintin's adventure (which have only some old japan/china politics, and some commentary on anti-gypsy prejudice). I'd say that Tintin are enjoyed by kids and adults at the same level, while Asterix albums are read very differently by them.
Also the Asterix albums can be genuinely touching, through their cartoonesque disputes and innocent reconciliations. Or through the druid's melancholic anticipation of our epoch.
I don't mean to hierarchize them (I'm more of a tintinologist, and I'd rate Franquin above every other), but don't underestimate the depth of Asterix, which makes them something very different from Tintin or Lucky Luke. Or even Spirou for that matter.