I wouldn't volunteer to eat spunk. 🙂 If push came to shove I appreciate that Mrs Chimp happily eats it so I couldn't turn it down on religious grounds, but if no-one's fussed I'll happily stick to being the provider rather than the consumer. 🙂
I believe the taste is affected a lot by diet and there are certain things you can eat to improve its characteristics. I want to say pineapple? Maybe asparagus? I can't remember off the top of my head. I do know that if you eat too many pound-shop pizzas after your student loan has run out then your jizz can taste like pound-shop pizza...
And I find the small of stale jizz to be incredibly sour (could just be mine though). It's very distinctive, and not an attractive smell. Mrs Chimp says she doesn't notice it, but that may be because she doesn't do the laundry. 🙂