The best lipos available are Intellect (and they are also some of the cheapest, which is great news!). The v9 6000mah is a good compromise between weight and performance. The new SHVs have slightly worse performance, but are more robust (less likely to swell). ORCA are just rebadged Intellects with 50% added to the price. Orion have come bottom of several tests I've seen; inflated numbers and inflated performance figures.
ORCA motors don't stand the heat very well in 13.5 boosted. Get them warm and the rotors fade permanently. The best is the GM Race, awesome performance and will take almost any temperature. The Hobbywing v10 also seems to be robust, although I've not run one myself.
The ESC is less important. They all have similar performance, just different settings to get you there. The Hobbywing V3.1 Stock Spec is my choice. It's the cheapest of the top-level ESCs, has performance equal to anything else, and is very easy to tune via the programming box.
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