I need to get to Zermatt and play John's course, but have to gain a bit more mountaineering experience for that region
Anyway, I think very few average players have ever decried par 5s as little fun. Beginners are generally afraid of par 5s due to their length and good players seem to hate the second shot, often a boring layup. But for average players these are the holes where they can really shine. I love par 5s, because they afford me the chance to hit the green in regulation - something that most par 4s don't.
On the other hand I actually believe it is difficult to design six great par 3s. Four is doable, although on most courses with four, I'll find that at least two of them are very similar in that I use the same club. One thing to keep in mind: no matter how you design the green and how varied the surroundings are, if the player is hitting the same club then he will find it a similar hole. Par 3s are very difficult to vary, because you have only one shot to do so as an architect.
Ulrich