I know this isn't the answer you were seeking, but it IS the right answer ... YOU'VE got to decide what the best under $3 smoke is for yourself ... you cannot go by anyone else's opinion UNLESS you know how that persons taste and yours match up ...
For example, there is one VERY popular brand of cigar on the market that most guys here think is great which I absolutely will not touch because I think they're horrible ... simiarly, one of my personal favorites is less than popular with a great many guys ...
Or put another way (with apologies to all of you who're sick of seeing this illustration) you might like cucumbers on your salad ... but if you'd taken my advise before you tried them, you'd never have tasted them, because I think they're absolutely the most vile food on earth ... I can't even pick them off a salad and be happy because I can still taste their flavor on the leaves they touched ...
So ... if you really love cucumbers, are you gonna trust my taste in cigars ?? IMO, what you should do is try them ... I know, there's way too many to try in a week or a month ... or even in a year ... don't let that worry you ... just keep chipping away at it ... buy 5-packs and samplers, make some trades, get into the birthday clubs, box passes or whatever that will let you try as wide a variety as possible for the least $$ investment ... but along the way, just be sure to remember which cigars you like and which you don't ... buy more of the ones you like and not the ones you don't ...