Flygon- Love him
Gyarados- He's so unexpected in competitive gameplay
Swampert- He's very sturdy and is a tank
Lucario- He gets good physical hits in, and priority ExtremeSpeed is amazing
Tyranitar- Does a great job at..killing everything
Breloom- Balances out the grass typing, and does a good job at putting people to sleep. Using Drain Punch is great too
Ok, I don't have a team made up, but I do know what it would be. It would be a group of all Spiritombs, because there is nothing super effective against them. They would have different moves, that would not allow enemy to leave battle, and would bring my enemy to the grave when I go.
Alakazam or Mewtwo
Charizard or Blaziken
I haven't worked on it too much, I just found a bunch of Pokemon that I liked that I had raised and made sure I didn't have any huge holes in it. It's not the best team but they are all really strong and have high levels.
My team varies, I don't really use a set team but I do refrain from using legendaries. No matter what though, I always include my Espeon since It's my Signature Pokémon. It sure has saved me alot in the past.
I can list the ones I use the most though. they are:
i have a seperate team for each game, all now transferred to black or white except ones i am currently playing through. my first major team though, was on fire red:
charizard, blastoise (river), venusaur, zapdos (sparky), articuno (ice age), moltres
After the elite four, i decided to bump it up a bit:
charizard, blastoise, zapdos, articuno, tyranitar (rocky), mewtwo (pysch - supposed to be 'psych', but i screwed up and forgot to change before transfer to diamond)
They are now all level 100, just because i have had them for so long.
i traded charizard (lv. 100) and blastoise (lv.92) to emerald, which i only found out was fake after it corrupted, 'killing' both of them. I actually cried, but their children live on and hold their places in my team now. Most of my water pokemon i use in teams now, i name river with a roman numeral after, in river's memory. currently at river III on LG.
LG - Venusaur, Pidgeot, Lapras, Ninetails, Raichu, Hitmonchan
Ruby - Blaziken, Wailord, Crobat, Walrein, Groudon (I made this team when I was 10 so I can't remember who the 6th one was)
Diamond - Empoleon, Staraptor, Azelf, Roserade, Dialga, Luxray
Platinum - Empoleon, Luxray, Gallade, Staraptor, Flareon, Roserade
HG 1 - Typholosion, Pidgeot, Starmie, Glaceon, Ampharos, Victreebel (my first play through now on Platinum)
HG 2 - Feraligator, Togekiss, Arcanine, Umbreon, Riachu, Sunflora
HG 3 - Megainum, Crobat, Magmotar, Espeon, Electivire, Kingdra (My current team)
White - Serperior, Swanna, Victini, Musharna, Zebstrika, Simipour
Black - Samurott, Swoobat, Simisear, Beartic, Emolga, Lilligant
i NEED a seeder. Typically a grass type. my personal favorite are those with high defenses and learn giga drain. makes them tricky to ko. my recent favorite to fill this spot is Serperior.
i NEED a dragon type. Mostly childhood love for dragons, simple and plain. Dragonite has always been my favorite ever since red version when i raped that game with my dragonite charizard one two combo. Recently i have been more open to other dragon types like Haxorus and Druddigon.
Electric type. with so many water types i feel its necessary to have an electric, even with a grass type. grass types give a weakness to ice which a lot of water types use. Electivire, Eelectross, Zebstrika, Luxray, Raichu, etc. good choices, plus only one weakness.
What i like to call the finisher. Any pokemon with ridiculously high attack, special attack, or both. any pokemon the first three are having trouble defeating ( usually not a problem ). Rampardos is one of my particularly favorite finishers because his attack is so high it almost doesnt even matter who its oppenent is ( with the right moveset of course )
Members Five and Six
Now these last few spots are up for grabs. if i dont have an adequetly fast pokemon with a fire move in my electric spot, i'll tend to go for a fire type to counter the ice weakness this format usually creates. And the final spot is some sort of water or ground type depending on the movesets of the rest of the team. if i am short in one type or have a weakness to a specific type is what determines this pokemon.