I agree that our parent's relationship gives us something to consider in our own, but I'm not convinced that we will have the same relationship as them. 

Now that I am out of the house and in my own relationship I can see my parents relationship more clearly.  I know that they are comfortable, and that they will never split up (they've been married 34 years), but I can now see why I was such a volatile teen.  My mom picks and bites at EVERY little thing my dad does, and although I didn't notice it as much when I lived there, I'm sure she did it to me and my siblings.  I love my mom, and I think she was an awesome mom, but I have had to build SO much confidence in myself since I've moved out and gotten married.  She never asks my dad nicely to do things, and STILL after 34 years of living with him, thinks that someday he'll be able to read her mind and do random tasks she wants without being asked.  I know my dad well enough to know that he's in his own little world, and that he would gladly bring the groceries in from the car if he knew they were there.  But she'll bring the whole load up from the car without saying a word to him, and then be REALLY pissed that she had to do it all herself - all while he's in his own world reading a book.  Of course he didn't help, you didn't bother to mention there was a load of groceries.
Anyway, this is kind of a rant.  I really try not to treat my H like my mom treats my dad.  My dad puts up with it, quickly calmly actually, but H would not.  I try to communicate with him calmly, nicely, and often.

DH's parents seem to be ok.  His dad annoys me to no end, but his mom is very tolerant. 

I just try not to be like my mom, and HOPE to no end that DH doesn't turn out like his dad, and I think we'll be fine!

not at all, both our parents are divorced , an so they werent good role models, we both adapted the attitude that we would strive to be different an did. his dad was not so hands on an , he is very hands on ,complete opposite of his dad.

my parents lacked communication an im all about talking

we are both about the we an us of it all, we consult each other over all matters even small things like watching tv we both respect that we have different programs we like an we both watch them together, i know its hard to imagine any man sitting down with you an watching a wedding show or greys anatomy , or me sitting down an watch ghost hunters or smallville but we well an if not we are respectful  an  one of us either reads or watchs in the bedroom.

I definitely think you can learn from the way your parents interact. For us, FI's parents are divorced, and it has definitely affected the way we approached marriage. I feel like we took it a lot more seriously than a lot of people our age, and we went for pre-marital counseling before we were even engaged. So, in that regard, the fact that his parents' relationship failed did affect ours.