Which guitar should I get? The OLP John Petrucci model or the Ibanez RG7321 7-string? I'm leaning towards the Petrucci, but...help?
Unless you customized it go for the Ibanez RG7321. It is overall a better insturment. GL
Says he who bought a Gibson Faded.
Anyway, back to topic.
The OLP guitars are quite nice, but compared to the Ibanez RG7321, it's not a great choice.
The RG also has the advantage of having seven strings, meaning it will actually add something to your collection. It's also pretty sturdy, which is always a good thing.
I would still recommend you to try both, but my vote would be for the RG.