Oh!
I can't help you with comparisons/technical stuff but had to come & post as we had a liver coloured curly during my childhood/early teens. Rather than the labradoodle thing, back then, people used to wonder if he was a water spaniel.
The leaning thing reminds me of ours - he did used to lean against our legs & if there was a sofa or armchair nearby, he wasn't averse to perching his back end on the seat while the front legs remained on the ground. He did the going round & round to "flatten the reeds" before lying down.
He wasn't wildly barky but didn't like being left home alone & could howl dolefully when he was. For a supposed water dog, ours wasn't wild about water; clean or dirty! My dad took him out shooting from time to time & had to strip off in freezing temperatures to retrieve birds from a lake! Probably should mention dog was 6 months when we got him & had spent that time living in an outdoor run with no training at all.
Can't answer if he was any more or less motivated by food than a lab, though he could make short work of a pound of mince left to defrost on a kitchen worktop
!
Regarding bald patches, ours used to seem to get some kind of acute itch on his hind quarters & would whirl his head round & nibble at that area so it did have less hair/bald patch. He didn't have fleas or anything.
I know there's lots of owner tales of animals seeming to have a sixth sense but ours did strongly sense when a family member was about to come home (not just because of "routine") & could tell when he was going to the vet when driving in the next village (shook uncontrollably).
He was great with my brother & I who were both slightly wary of dogs when our parents brought him home.
I am not in the position to have a dog, but if I were, it'd be a curly I'd want!