Strings Dilemma


Hello fellas, Forgive me for posting this question here, but I'm kinda lazy to register at different site since I know many of ya play some musical instrument. I recently decided to jazzify my Takamine EG544SC purchasing light action strings and practice jazz sequences.012-.053.
After replacing my medium action strings I noticed that my action haven't become any 'lighter' vs. the one before.
Does it make an action difference between brands even if the gauge is the same? I've always bought strings 'on sale' and changed them pretty often 'cos I love the fresh crispy sound of new strings and they all sounded AWESOME on this guitar without even paying attention to a brand purchased... Please also read the next my follow-up...
128x128marakanetz
For some reason I couldn't continue on the original post although nothing was found such as reaching the character limit in the box...
Hence I continue:

The strings I purchased is D'Adario EJ16-3d that literally suck in everything: action and kind-of unfocused i.e. not sharp sound so I can hear a different tone coming from the string other than it's suppose to be. In strumming action I guess It's OK, but otherwise as a learner I'd like to hear everything crystal clean and virgin untouched.

I'm pretty sure that there are loads of 'goners here that had played tons of different strings and on different guitars that could discuss this above post with me. For your quick reference my Tak mentioned above is solid top electro-acoustic guitar that sounds great both ways.
Marakanetz,
Have you not purchased this 'brand' of strings previously?
Maybe these strings just plainly do suck.
As an Alto Sax player, I would get reccommendations about reeds and mouthpieces, 'wonderful' etc. only to discover that they were not up to my standards...one person's treasure, or 'action' is another annoyance.
Why, out of curiousity did you buy these? Someone you respect reccommended them?
Larry
this 'brand' of strings is all over the stores with all different model numbers that are really hard to trace... previously buying a set of new strings for low $3 range would suffice until i hit this bummer.
i've never asked recommendation although have a few brands written down they were mostly for medium action strings that more for rock'n'roll and folk rock hard strumming now i need ones that sound nice and light for most of the time finger picking.