Sort:  

That's not an easy one!
However, things are as follow...

1) and 2) @uwelang and @littlenewthings are my old friends from some past time from some other platforms. As content creators, I like their vivid spirit, positive energy, and supportive attitude, while at the same time always being ready for some jokes and fun. As well, I think I may say that we learn a lot from each other, or at least I've learned a lot from them.

3) Then I would place you, dear @merej99 - As you are maybe just a month older Steemian than I am, and having a chance to find you at the very beginning of my arrival here, I remember my first impression and thoughts I had reading your articles. It was something like: "OMG, this woman is normal! Thank God!" In other words, I like you being YOU. As well as for above two, I like your positive energy, extremely supportive attitude in constant chase of finding new ways how to help others and each other, selflessly sharing information, tips, and tricks, new findings etc. And besides all of that, still being a very approachable ordinary woman with all your flaws and virtues, especially when you bring them to light and show them to us in a funny way.

4) Here I would put my Steemian friend @velimir who I would never find or meet if there wasn't Steemit, although it happens to be that he is my fellow citizen. I like his Motorcycle travel stories, and that's in fact, how I found him, in the first place. He is a genuine young man, also very helpful and supportive, with traveler and explorer spirit, lot of positive energy (although, it might not be seen always and at the first glance). Here on Steemit, he is sharing his motorcycle travelogues about the places, some of which even I never visited although I'm living here and they are not very far to reach. He inspires me! I also like chatting with him, and in the moment waiting for his return to town and looking forward to our first 'Fellow Steemian Coffee'!

5) I was arguing with myself a lot about that 5th place. But if I want to be honest then I have to admit it belongs to Jeff Berwick or better known as The Dollar Vigilante. I found him (same as you) almost at the beginning of my arrival to Steemit (through that second profile, first). Contrary to what might be general thinking, not because of his huge and I think still an unbeaten success on Steemit (although it was the initial reason why I found him, in the first place), but because of his somewhat controversial and intriguing personality.
Although I wouldn't agree with him (especially at the beginning) for many things, he managed to keep my attention. Besides those things I would rather argue than agree with him, he shared with the community a lot of good stuff. As well, he evolved a lot from times when he arrived here till today. For me, it was not only fun but as well educational to watch him grow in certain aspects and through the changes connected with it.
Despite the fact that he might be at least very provocative (sometimes even rude, although much less, lately) I couldn't get rid of the feeling that deep down he is a good, honest and supportive guy in all his sometimes very raw straight forwardness, and that's how he kept me still following him.

I made the list! LOL
I almost never make "the list" :D One of the things I love about Steemit is how real people are. And when you find them, they are treasures. My world has expanded in so many areas because of the people I've met here. Hugs to you.

Hugs to you too, @merej99! For the rest, I can only agree! 🙂

P.S.
There are many others who would deserve to be on this list, but you've asked only for 5. 😉