My favourite Vanda (actually and Ascda), and my first Vanda. But not because the flowers are massive, but the ease for which the plant flowers, along with the cheerful colour. I've had it around 8 years and these two spikes are number 27 and 28 - so it flowers around 3.5 times a year - and that was growing either in Seattle or the UK, neither places particularly known for sunshine! It has thrown up spikes in January when I haven't seen any sun so I'm not sure what triggers it to flower. Widely available.

Image link: