Paul and Noel,
I hate not to be able to declare either one of you "right", but the fact is it depends on what perspective you come from. Noel's observations are pretty much spot on. It's only about 240 to carry the front bunker. I've lost count the number of times I've played the hole and I've never seen anyone with a handicap of less than 8 lay up. My member friend usually hits 3-wood (and a wood wood at that) to the center of the green. Granted, he is an old blue, but Noel is correct that the only danger is going left or long. I disagree with Noel that long is not a possibility as I've seen players go long which results in a semi-blind chip/pitch (possibly from heather).
What hasn't been discussed enough is a giant ridge that defines the far right pin placement. You can see it best in the second photo. The result of this ridge is actually to make the hole play easier for players who go for the green and miss it right when the pin is on the right hand side, but other than that, it is what keeps the hole being a par 3.75 rather than a 3. The upper (i.e. left side of the green) is a good 1.5 feet above where the pin is placed in the photo. Therefore, if you miss it right or put it in the right bunker, you have a nice backstop to stop your pitch/explosion shot and can, therefore, be more aggressive. Now, if the pin is left, and you miss it right, you have a long explosion shot or pitch and must also negotiate that ridge (which turns a straight forward pitch or bunker shot into something a little more tricky). Basically, if you drive the green and are on the wrong side of the ridge, good players two putt about 50% of the time.
I think it is a good hole in a stroke play context because you must take note of the pin position and figure out where not to miss it. That being said, I think it is a great match play hole. I've come to hole and watched my playing partner put it on the green with his drive, but on the wrong side and a long way from the hole. I've then played 6 iron/SW and won the hole with a 3. Noel hasn't had a chance to play SGH in firm conditions yet. In firm conditions, putting off the green from the left side is a real possibility. SGH was particularly soft the last time I played it with Noel. In defense of the set-up, SGH is a much more severe golf course than either West Sussex or Woking. Many of the greens are of the inverted saucer variety and cut into or perched atop the hills the course is routed around and over. Therefore, the well contoured greens of SGH can become even more difficult because the effect of the greens being built on hilly terrain.
I love Swinley, West Sussex and Woking (in that order), but still favor the Hill over the previous three. There are many reasons for this, but the first one that always comes to mind is variety. 470 yard 2 shooters (SGH has the widest fairways of any of the listed courses, but like Pinehurst, just because you're in the fairway doesn't mean you've got a shot), 110 yard one shotters, fantastic contours through the green (which I don't think any of the previous 3 can match), a great set of greens with varying sizes depending on the approach; but lets be realistic guys, have you ever found yourself wishing you were playing somewhere else while playing any of these 4? I haven't.