Sorry for the delay guys, it's hard for me to give feedback on everything here as it would take me hours each time, so I'll only talk about the ones that I believe have potential or at least have less steps for me to explain, to get them to being potential.
The designs I feel might be tweaked to perfection so far, are the following.
NastyDan - I really like this one, as it looks better than the ones made afterward. My suspicions were correct, adding substance to the clock took away from the name. However it still seems bit too simple and not as imp-actual as I would like. It's still on my list, just keep thinking something better will surface, so I want to be patient and take the extra time to make the right decision.
JJ Bones - This one could possibly work, however the text of 420 is not readable enough. You need to be able to take a quick glance at it, then turn away, and still retain the memory of that "420" that you saw. If you are unable to determine what it is at a quick glance, then the text will not be readable enough for proper branding/marketing, in my opinion. Also, please make this on white background instead.
JJ Bones - Same thing applies to this one, however since it has no box around 420, I'd like to see the 420 text be more of a box shape, to give the appearance of a somewhat structural border, in lieu of the box. Also, please make this on white background instead.
JJ Bones - This one is growing on me, however I'd like to see Since 1993 take up half the height it currently does, yet the same width. Try using a different font that is not so tall, position the slogan text a little closer to Magazine. I'm also interested in seeing this with MAGAZINE in all capital letters. That empty space above the "agazine", to the right of the "M", is not sitting too well with me right now. For some reason the 420 looks a tad bit smaller than Magazine, so make sure the 420 is the dominant one at minimum, however I am thinking keeping them the exact same height will be best.
Miro - I like this one, however need to choose a different font for 420 that is less wide, it takes up way too much real estate and that 2 has way too much empty space in it. I would also like to see the hole in the middle of the 4, it's just looking too weird for me at the moment. Please try using some different fonts for 420 and show me.
Miro - I really like this one, it may just be the simplest, classiest one so far, however I'm not 420% sold on the font of 420. Everything else seems perfect, however would like to see some more options of different text for 420. I love the structure, seems very simple, elegant and in your face, everything is very readable at a quick glance. I could see this across the top of a classy magazine. Could it be too classy for 420 Magazine? Still thinking.
Miro - This one is very interesting and has great potential, however the 420 must be more readable, please try using some other fonts that show 420 plain and simple. The more artsy you get with the letters, the less easy it is for people to understand what it says and retain the information for later. Leave everything else as is.
Sonzor - I like what you are doing with the structure in these, however I think the problem is the effects you are using to accomplish an artsy look and feel. Many of them look like too much, like amateur fonts used for yard sale signs or lost cat posters, not for a branded logo. Please try to simplify and use less effects. Imagine Tammy Faye Baker toning down her makeup.
Sonzor - You're on the right track on this one, simplifying the text, however then you went too far with the 420 text art, that we can’t read the 420 easily now. I do however like how the line goes under the text, across the logo. Simplify all of your text and you will be closer to what I am seeking.
I would like to remind everyone that we are seeking a simplified logo, if there is too much going on it it, they won't be considered, however are greatly appreciated as they are all great works of art and we are truly grateful.