speaking from ONLY my own experience…i have 3 donks and 1 mule ,along with horses…newish to donks and mules, had horses for 30+ yrs…
the donks, once socialized, are really puppies in long ear suits…if they love you, they LOVE you, and like goats or cats, once you have their interest, it is very difficult to make them keep a nose out of what you are doing…extremely persistant, and long memories…i have my equines strictly for my own pleasure, and for me, i get back more feedback from the donks than the mule or horses…and that works for ME…might not be everyone’s cup of tea…
my molly mule is sweet, sweet, sweet, but much more reserved in her affections, and even after a year of lovies, cuddlies, and special pains to let her know she is safe and loved, she is still cautious with interactions…not mean, just aloof…the times that SHE approaches ME for attention are rare, and make my heart sing…lol…
my morgan mare has been with me since she was 6 months old…she is now 15…she is loving and affectionate, will even leave food to greet me…but once her curiousity or affection needs have been satisfied, she will be distracted, wander off…whereas donks will not.leave.you.alone…
the animals are all right out my back door, which makes for a different relationship as well…and donks are extremely vocal whentheysee you…
now, i am biased because donks seem to like ME…lol…went to a donk rescue, and the folks were amazed at how even the most reserved donks came up to me and hung their head over my shoulder…the laughingly called me the donkey whisperer…so, i thnk it depends on what sort of relationship you are looking for from an equine…
and the mules and donks are FAST to learn something…lol…really fast