I'm not as handy with words as Bad, but here is my review of the clearos mentioned. Sorry for the length.
There is no wrong or right answer here, as Bad suggested, every one has their favorites and I suppose all we can do is post why we like / dislike certain clearos and let the OP make their own mind up.
1.
Vision Vivi Nova Good build quality, few dry hits, easy to use top fill design and great flavor and vapor production. Easy to rebuild heads if you are so inclined. Vivis come in plastic, metal and pyrex so there is one to fit your needs. Only downside is the tilt and swirl you have to do to ensure proper wicking. No leaking issues (except in the Texas heat) and a high
juice capacity made this my go to clearo. You might have to fiddle with it a little, but its easy to work with and gives an excellent vape.
2. Kanger EVOD Good build quality with no mess, fill, screw in and vape. No dry hits, excellent flavor, superior vapor production to every other clearo I have used. Replacement heads are cheap (less than $1 each) and the clearo comes in various colors to match your battery. If I had to pick one clearo to recommend, it would be this one although it is plastic so dont vape known tank cracker juices in it.
3. Kanger Protank 1 Pyrex is a great addition as you can use tank crackers with no worries. Somewhat airy draw and you have to add or remove flavor wicks to avoid gurgling / dry hits depending on
juice used. Suspect build quality of the base in particular as some have reported it breaking off. Unable to change the drip tip as its fixed. An OK clearo, but you have to fiddle with it straight out of the box to get the vape you want. Mine sits on a shelf gathering dust. I have not used the PT2.
4. Iclear30 I couldnt get this beast to wick properly, although it was probably user error as I was a little green when I tried it. Found the drip tip nice to use as it rotates to suit. Sucks juice like nothing else I have tried 1ml just to wet all those wicks. Could not get consistent performance sometimes a really good vape, sometimes the worst. I might have to revisit this clearo (Id have to buy another first though)