Likewise, My male was pretty strong in the testosterone, but he was made to get along just fine with the other male lab I showed with, we spent too much time together to have it otherwise.
If you're going to spay/neuter it makes less difference, but much as intact males can be challenging for their attention, at least they're consistent.... I wouldn't try to compete in sport with an intact female for anything... they're too worthless when in heat :~).
And you're right about competing intact females . . . it's very rare to have one like Candlewoods Tanks-a-Lot, who went all the way to the top three times despite having litters right along . . . I would love to get a Lottie baby or grandbaby, although I probably don't need that much dog. I would be perfectly happy with a HRCH and maybe a Senior Hunter. If I could run him or her in agility on the side, that would be absolute perfection.