I prefer it without any ruins at all. I'm very much a natural girl myself and i really think that some wood (mopani, vine, bogwood) some natural rocks (i get mine from my garden) and even terracotta pots in moderation can look simple and stunning.
I'm down to having only 2 out of 6 tanks with fake plants now. The only reason the two arn't planted is because they don't have lights just clear trays. I'm awfull with plants but i can tell you that all you need is to get yourself some root tabs (i use these) and/or flourish excel.
Easy care plants:
Elodia

a staple in my tanks grows nice and tall and never fails proberbly one of the hardiest and most reliable plants around.
Java fern

Great stuff and again so easy to grow it's un believable, a plus is that if it does die it wont make a mess of your tank.
Java moss

Tie it to some wood or a rock and your set, the most low maintinance easy to grow plant out there.
If i remember correctly when you did try planted you used cabomba? Some bushy plant anyway that died and made a big mess. I had the same issue. Some easy tips are:
Take the plants OUT of their pots before you plant them.
If the plant wasn't bought as a floating plant then root it down or it will simply die and rot.
I am in no way shape or form a plant junkie, but i do feel that they look amazing and are really better for the fish. All the plants i listed are dirt cheap too
Get some real plants in there girl, you'll never look back.