can i make a suggestion the heliolisk be knocked down a grade or two due to the chance of getting sun stones is impossibly low heliolisk isnt very viable due to the ammount of time it has to stay as a helioptile. You can go through the game and probably not get a single sun stone like i did ..... i farmed the rocks for 4-5hrs looking for a sun stone,then i farmed solrocks for the sun stone to finally evolve him at lv 48 ...... i could have cried i needed him for coverage but as a helioptile he is painfully slow and doesnt have the bulk to tank the first hit ....
rant over for that pokemon xD
Already been suggested but wasnt listed so i think ill give it a lil heads up Pyroar really good poke decently equipped with speed and Sp.A and a semi decent attack with the ability moxie it really can sweep the odd unsuspecting leader even more so if you decide to keep workup to boost your attack and Sp.A further with high damage moves like headbutt and fire fang pretty early on it , it gives you a pretty decent start to the game considering again you get it pretty early on (help quest battle me quest in gearen).
Next On My List of pokes to be included is Manetric although it comes alot later in the game its got speed and special attack to burn a semi decent move pool well worth training after you manage to find it(took me a while lol .... was kinda in awe when i did who could do that to a poke)
Edit: Also forgot Delphox it hasnt been listed yet, it was the poke i used to help setup my houndoom against angie its a pretty good speed and ill let you fill in the rest coz im tired.
You guys will need to fill in more of the details as i wouldn't know how to rank them as im pretty biased to the poke's that i actually use.