How much influence do other courses already on site, directly have an architects decision making?
Is it still build the best possible course? Or is it a case of we need to be different rather than more of the same?
I guess different architects might see this differently. Personally, I enjoy having other courses there, so I can try to emphasize the contrasts between my course and the others, instead of starting from my own "templates". But I think I'm different than most guys, in that there aren't many things I insist on putting into all of my courses. Instead, I've got 100 different ideas hoping to get off the bench someday when the right little stretch of ground comes along.
The idea of "the best possible course" is kind of misguided really. Who's to say whether a different style of bunkers, or smaller greens vs bigger greens with more contour, is better? I have enjoyed all of these styles in different places. So, I would prefer to make my course LOOK as different as possible from its neighbors.
But there is a difference between style and substance. I'm still trying to find what I think is the best combination of 18 holes that fit together well. I'm not going to give up a great hole because there is a similar one on SV or MD. Although, I did not build a Redan hole at The Renaissance Club or Sebonack, knowing that the two best examples were next door to those two courses. There are some comparisons you don't want to invite!
At the same time, there are some comparisons you're happy to draw. I thought the par-5 holes at SV and MD were all massive holes, and I'm glad not to have any holes like that on my par 68. When it worked out that #5 was a par 3 and then there wasn't much room to #7 tee, my brain went immediately to 5 & 6 at Pulborough which are back to back par 3's, and I'm happy to draw that comparison (knowing full well that less than 10 visitors a year to SV will have actually played West Sussex).