In the first few months, wonder Eevees were far more common, so I managed to acquire four wonder Vaporeons with WG/HP, three wonder Flareons with Ember/FB and two wonder Jolteons with TS/Thun.
During the Easter event, I evolved a few Eevees that caught Blanche's attention (for the XP) and now have a Flareon with FS/OH.
Although Exeggutor is common in my local meta, my Arcanine and Charizard deal with them just fine, so my only reason to power up a Flareon with FS/OH would be to deal with Blissey.
My current main options against Blissey:
A. Count/DP Machamp (luck; Machop is rare, buddy)
B. Conf/Solar Exeggutor (and weaker spares)
C. WG/HP Vaporeon (and weaker spares)
Dratini is easy to farm here, so a DT/Hurr or DT/OR Dragonite is just a matter of time (my current three all have SW). I have yet to catch or hatch a Larvitar.
With 130K stardust and 400+ Eevee candies, my three options are:
1. Immediately power up my non-wonder Flareon with FS/OH to add to my anti-Blissey team (that he would destroy Exeggutor is merely a nice bonus).
2. Patiently farm Eevees and evolve every wonder until I get a FS/OH Flareon to power it up (I am also seeking another Jolteon with a good anti-Gyarados moveset).
3. Neither. I do not need Flareon with FS/OH as an attacker/prestiger, given my current (and other potential) options.