Sure, here are some quick notes I've taken during the auditions. What I like about these IEMs:
UE18+pro => Silky smooth mids, rich and musical. Neutral sound signature with warm tone. Excellent coherency. After the last 4 days of hectic trips between different stores over the country which carries the different models, I decided to drop Empire Athena which is another mid centric IEM in favor of UE18+pro. This has now moved on from my shortlist to to-buy list. lol...
Samba => Detail, resolution, imaging, separation and layering are top notch. That clean sound with these qualities upgraded it onto my to-buy list.
Xelento => Its the king of dd. That satisfying and addictive thumping and rumbling bass and sub bass are what I love about this universal IEM. Soundstage, separation, detail and resolution are equally top notch. As it is V shape, female vocal is outstanding too. Though male vocals are somewhat more distance and laid back, which is what I felt lacking. But nonetheless with UE18+pro complementing it, this is going onto my to-buy list.
W900 => Dropping it in favor of the other three. Used to like it for its huge sound stage and natural sound, easy to listen to for hours on end without feeling fatiguing. But since I'll be getting the other 3 which are better in those various aspects I listed above, had to let this go.