I definitely think there is a tendency to hype up and perhaps overvalue strong players who are very vocal about their strategy in the DR. As good as it can be to see someone plotting in the DR, then flawlessly follow through on their plans, I think there are many undervalued players who don't get the credit they sometimes deserve, in part because they didn't talk the talk in the DR first.
Not that she's anywhere near a Dan or Will level, but for example, I think that Maggie in BB6 played a very underrated game and was by a clear mile the best strategic player of her season, yet she's often regarded as a poor, even terrible winner. Of course being a part of the most hated alliance ever doesn't help her rep, but I think that if Maggie had been more vocal all season about how she was utilizing that bunch of horrors, then she might have been given more of the credit she probably deserved. She kept that group so closely knit that they were never going to turn on each other, and whilst that was unspectacular to watch, it was the perfect match against the rival alliance, which literally managed to stay together a week before fracturing, and pretty much blew every chance they got to get back into the game. Remember when Howie was HoH? Maggie completely rung rings around him and got him to put up James and Sarah, in my opinion the absolute key to the Nerd Herd winning S6, yet its hardly ever talked about it when discussing great game changing plays, perhaps in part because Maggie, she of little personality, never really talked it up as an important move herself.
Whilst I've mentioned James, isn't it interesting that from that season, he's is the one who is regarded as a "strategic player", despite playing a horribly misjudged game that was never going to work in that particular season. The fact that he always gave a good account of his attempts to play both sides of the house in the DR surely can't be coincidence?
I think another great example of what I'm trying to say is Survivor's Russell Hantz. He's regarded (by some, certainly not me) as an epic player, robbed of the win by a bitter jury blah blah blah. I know its a season that will always divide opinion, yet for me Natalie played a much smarter game and thoroughly deserved the win. And again, I'm not saying that Natalie is anywhere near the level of Will or Dan, yet I'm sure if she had gone to the camera and said "I'm going to milk Russell for all he's worth, make connections with the jury, then reap the rewards when his horrific personality and ego pisses everyone off" then people might be more accepting of her as a winner. It's never really mentioned that Natalie was instrumental in the move against Eric in the merge episode, probably because we saw Russell mouthing off about how many idols he'd found to the camera instead.