[quote=@Winston Smith]

I don't know, I quite like the Tyrells sensiblish,kindish,generousish Lords Paramount.

 Only downside is the upjumped stewards part. Denethor and Boromir clearly show us how important it is that only people who are born to a long line of kings should be kings. Anyone else trying to rule would just be wrong and lead to the slow and steady decline of a Kingdom./sarcasm.

[/quote]

It's the weird trait about them. They are fairytale like, they're depicted as such and the place they come from all point to it. They are mainly lucky, it's a rich land with good fields, so whoever is at the top is going to find it hard to make a mess of it all- plus all the chivalric traits sort of echo out from Highgarden too.

Thinking about it, the House's members (male, at least) are generally long haired, bearded, there's a strong connection to flowers....the more I think of it, this smells of a hippie commune for some reason.

But on the topic, I hate it in some ways, there's few flaws that you can see on the surface of the House (also, I should point it out that with the Tyrell line at this point in time being less of a matriarchy as seen during Robert's Rebellion and so on). That said, it's as you say- there are deep problems that won't ever fade, Garland isn't a born Lord, he's a secondborn's son who happens to be quick (and lucky) enough to actually deal with the situation at hand, and they're still young as a Great House in the general scheme of things. The Targaryens kind of ensure their very existence.