Main thing here is. WHICH do YOU hit the best? Hybrid or wood? I don't care for hybrids due to not hitting them all that well. I hit all 4 of my woods better than any hybrid I've tried, so I carry 3W, 5W, 7W and 9W. Also don't carry any irons over my 6 iron. Don't need them as my Woods cover all the yardage gaps between my 6 iron and my driver.
BUT, that's ME, not YOU. YOU need to see what YOU hit the best and not worry what anyone else does. How far do YOU hit your 17* hybrid and your 5 Wood" Assuming your 5 Wood is an 18* model, don't know if you would see much difference between the two clubs. But if you get a 15* 3 Wood, You Should see a difference in distance, assuming you hit it well. Only way to know for sure is to try all options and carry what fits your needs and skills.