What about bases? As a kid metroplex was my most used tf.
I started hating beasts when they first came out and the majority are crapy but some of my all time best tf are beasts (AAOP for one). Imo the cybertron beasts have been ok to good. I like scourge a lot and the basic beasts are also good, eg backstop.
The realistic cars are the easiest to like. Part of it is that you do not need to explain to anyone what its for. Try putting octopunch or that tomato headed monsterbot in your display case and see the reaction from family who drop by