Absolutely agree... If Pool, Darts, HorseShoes... or NASCAR, etc. can be considered "sports" why not R/C ?
I've never done it personally, but have watched and photographed it on occasion.
Try flyingdriving/racing a plane/heli/car/truck etc. that costs anywhere from $100 - $20,000 in a high stakes competition where time & technique are KEY. One wrong move and your out $ XXXX of dollars. Money, Competitions, Activities, STRESS... sports are sports, some are fast, some are slow, some only involve moving your thumbs
but why not consider it a "sport", what other category would it fall under? Heck, they even have video game competitions nowadays and they consider THAT a sport... 
Back on topic.... OP, I like #1 the best, the others show too much motion in my opinion. Only time I like showing that much motion is when the go inverted! Again, just my preference.