We all have our different ways of grouping items and people together. I think it'll be interesting to explore this topic and examine whether we all really talk like this or not, along with coming up with more groupings for each temperament.
This is Keirsey's word on what kinds of groups each of the four temperaments like to talk about (which I find to be true):
Guardians (SJ) - clusters/bunches/stacks - (flock of geese, pool of cars, bunch of grapes, grove of trees, crowd of demonstrators)
Artisans (SP) - sets/arrays/varieties - (golf clubs, knives, office furniture, football players, acting cast, wines)
Rationals (NT) - sorts/distinctions/categories - (differing arts, differing sciences, differing philosophies, differing personality types)
Idealists (NF) - classes/genres/types - (canine animals, evergreen plants, Westerners, indie music)
SJs talk about groups of similar or indistinguishable groups because they're the measurers of society, measuring time, taking inventories, sorting goods into containers, etc. They're also the temperament best at organizing.
SPs talk about sorts of things such as various wines because they're the artists of society and the masters of variety and spotting opportunities. Thus they can pull together the strengths of various items, using them interchangeably like a ninja warrior twirling nunchucks one second and throwing chinese stars the next.
NTs talk about sorts of things because they take great pains to distinguish one type of thing from another so as to not get them confused. Their distinctions can get deeper and deeper, creating more efficiency and thereby evoking accusations of splitting hairs.
NFs talk about classes of things, grouping things together, especially humanity, claiming that we are all essentially the same (and thus have become the greatest civil rights speakers). They stress similarities and love to see the ties that bind, such as Jane Goodall studying chimps and admiring the similarities between them and humans.