Don't particularly want Symonds in the team. Though as I've said a number of times, I think his bowling in test cricket has actually been vaguely useful, which is more than I expected. He's done well keeping the runs down at times, and he bowled a telling spell at the MCG two seasons back.
I just don't think he's one of the best test batsmen in the country, simple as that. He's not the worst, and I can actually see him maintaining a passable test average, but as an all-rounder there's no doubt Watson is a better choice with both bat and ball, and guys like Hodge are obviously far better batsmen. Symonds simply shouldn't be in the test side, though I can see why they favour him given how much he contributes in ODIs.
He probably can't be left out now though, especially given Watson's lack of fitness.
Agree with everything you say, I think people overstate the mediocrity of Symonds bowling, his approach and action look very ungainly and he dosent look awfully threatening, but he is capable of bowling to a plan and given helpful conditions he can nip out a wicket or two. And really thats all thats expected of him, a 5th bowler who will build a bit of pressure and be steady for 5-15 overs a day.
Tbh dont think his bowling would be any less effective at test level than either Watson or White atm.
Its just that, as has been said, he's holding down a middle order batting spot and there are so many more capable and deserving batsman going round atm who he is keeping out of the side, Hodge, D Hussey, Watson, Katich and others all look like they'd be more substantial contributors with the bat.
And while his bowling is handy, the job it does is only to bowl those few overs of backup per day, and its quite likely David Hussey, Watson, Michael Clarke, Hodge or hell even Ponting would be capable of doing that.
Symonds selection is not the calamity some people treat is as, its not like he's way out of his depth or anything, there are just better options which are being ignored.