>>2731538No, it depends on the context.
If you tell somebody suki in their face without adding "as a friend" or something people will most likely see it as a confession.
Daisuki sounds a bit more childish/cutesy and has a circumstantial component like you're overcome with joy after receiving a present and go "I love you so much!". It's also often used when referring to objects or activities. It can certainly be used to declare romantic love but again, depends on context.