Anything and everything that is a plant and can be happy in the house is my favorite plant. Many, many years ago I lost all my plants and now am building my plant jungle again. I like all and depending on the what and why, i can appreciate the succulents for their abilities and different shapes, the tropicals for their love of water and leaves and sometimes their flowers, scented plants for the aromas they offer, and ...and...so...and so on...
I received some new plants today. One is the peace lily, an avocado my started, lucky bamboo, i think, 3 poinsettia, and some other stuff.
I got a Norfolk island pine for Christmas, an orchid, and three poinsettia. My jungle is growing and I'm still looking for more plants. The more plants I have the better I like it and for me they are like potato chips. You can't have just one.