Most played cards in G/W Aggro:

4 Decks
Temple Garden
16 copies - 4 average
Loxodon Hierarch
14 copies - 3.5 average
Saffi Eriksdotter
13 copies - 3.25 average
Watchwolf
12 copies - 3 average
Brushland
12 copies - 3 average
Selesnya Guildmage
11 copies - 2.75 average
Sunlance
11 copies - 2.75 average
Glare of Subdual
11 copies - 2.75 average
10 copies - 2.5 average
Troll Ascetic
10 copies - 2.5 average
Temporal Isolation
9 copies - 2.25 average
Call of the Herd
9 copies - 2.25 average
Serra Avenger
8 copies - 2 average
Birds of Paradise
8 copies - 2 average
Llanowar Reborn
8 copies - 2 average
Faith's Fetters
8 copies - 2 average
Gather Courage
7 copies - 1.75 average
Treetop Village
7 copies - 1.75 average
Horizon Canopy
6 copies - 1.5 average
Selesnya Sanctuary
6 copies - 1.5 average