SPECIFICALLY: What are the 5 best fruit & veg.?

I'm basically trying to lose roughly 5 Kgs, and I've been told by a few trusted sources that you can eat as much vegetables as you like (excluding potato I think...) and heaps of fruit aswell... There are so many of them that I enjoy and I'm just wondering what the BEST few are of both fruit and veg... Any other tips on losing weight would also be appreciated! Thankz x0x0