I have a Fire/Fire Scrapper at 50 and a Spines/Fire at lvl 31. I found the fire/fire to be a lot better for soloing. It as more ST attack so it is easyer to kill the boss and lts. Spines/fire is a lot of fun too but it is better on team IMO. Then you get to see how good Spines is at AoEs. Both are fun to play so what ever you pick you should be ok with.
Also Fire/Fire does more Damage because of Fiery Embrace buffs your fire attacks too.
"All right, they're on our left, they're on our right, they're in front of us, they're behind us...they can't get away this time"- Chesty Puller US Marine Corps
/fires Firey embrace gives fire/ attacks a 20 second +125% daamage boost while "only" giving other attacks a 100% damage boost for 10 seconds.
Fire melee has awesome AOE in FSC too, its not just a ST set
I have a 50 spines/fire that I'm nearly done IO'ing and I enjoy it, but I do want to try a fire/fire next!
Fire/Fire all the way. Blazing Aura + FSC= solid Aoe damage, FS,Cremate, Incinerate,GFS= Sick single-target damage. Oh and thematically it works well too. You don't look like you are made of flaming plantains.
However, if you JUST want great aoe damage then *grumble* spines fire IS better. Spine burst+throw spines+quills+blazing aura +two build ups=absolutely disgusting aoe carnage. Nothing short of a boss will last more than a few seconds.However bear in mind that it might ruin your concept unless your character is named Blazing Banana Man.
My fire/fire is a beast. The best part about fire/fire is you can built it many ways, take or skip various powers and it will still be a beast. The only question is what kind of a beast do you want to make?
"All problems can be solved by throwing enough scrappers at it."
@Riez on Virtue, Protector, Champion, and Exalted server.
Interesting. For some reason, I was expecting most replies to say Spines/Fire, and found the opposite instead. 
I think I'll go with Fire/Fire for now, and do Spines/Fire later, if/when I get an extra slot...
Feel free to keep the opinions coming. I enjoy reading what I can do.
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Hmmm, I too am deciding which way I want to go here. My intentions are for pvp. Can anyone share/speak on their experience from a pvp perspective?
This WILL be the first scrapper i take past lvl 20. I've deleted all the others in favor of other AT's in past, lol.
If after you share on the primary, can you also speak of whether /fire is a viable secondary on a scrapper in pvp?
Likely will be for RV.
thanks in advance to those who can share.
I have an idea for a Scrapper I want to make, but I'm not sure if I should go with Spines/ or Fiery Melee/ for my Primary. Either way, I'll be using /Fiery Aura for my Secondary...
I only have 1 slot available on my main server, so making both isn't an option at this time. 
Opinions? Suggestions? Money?
On the one hand, Spines/Fire is purported to be an AoE Beast that surpasses Spines/Dark. On the other hand, Fire/Fire is purported to be a pretty decent ST Beast, with some nice AoE support in BoF and FSC. I tend to solo a lot, and both seem like they would benefit me...
So, I dunno which I wanna make.
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