There's so many I love to wear in summer, but in terms of an intensely refreshing effect, perhaps:
1. Selection Verte
2. Trumper's West Indian Lime
3. Guerlain Imperiale, Farina Gegenüber, Monsieur Balmain
These have a certain initial zing about them, which is not contained by soft neroli, white florals or such. SV has the best skin cooling effect ever (Fath Green Water is very good too, but more crudely minty). Trumper Lime is the best zingy-sour-fresh lime, very short lived though. Imperiale and Farina are strong on the hesperides for a good bracing effect, and M. Balmain has a great and relatively lasting super invigorating yellow lemon.
Balle de Match and Guerlain Pamplelune are super grapefruits, which I'll have to buy some day as well.