I haven't smelled 1861, but I don't like citrus, so my vote would go for Uden. Really pleasant scent overall. Not overbearing, good projection, fantastic longevity, and I think could go over easily in any season.
1861 has the most natural smelling ingredients like your smelling them right off the tree/plant and would be a good one for spring. Unden imo is not very nice and is made up of discordant notes that to me clash.
If you want a lovely Citrus but not long lasting (or it wasn't on my skin) then 1861, if you want something that's more aromatic/citrusy/marine and for me lasts a very long time, then Uden.
My personal favourite especially for Summer is Nio.