How does my team look for the elite four?

Hey guys!

I'm currently training for the elite four and I wanted to know how my team is looking.

Here it is:
lvl 50 Krookodile
lvl 58 Scrafty (This just happened because I love him)
lvl 51 Beartic
lvl 51 Flygon
lvl 50 Volcarona
lvl 50 Eelektross

How does this look? I can train more but I'd prefer not to. I was thinking that maybe Eelektross and Flygon might be bad and not helpful so what pokemon can I put in? I currently have the following:
lvl 52 Zweilous
lvl 50 Serperior
lvl 46 Mamoswine
lvl 55 Arcanine
lvl 47 Jellicent
lvl 47 Metagross

Thank you for your time and help!

I haven't gotten Volcarona to level 50 and I think it might take longer than I think. I know this sounds weird and contradictory. Would there be a good pokemon to trade in for him from my selection.

Well you team has a weakness to fighting, so id say swap beartic out for jellicent.
Your team is also vey pysical based so id swap eelektross out for
ampharos
galvantula
jolteon

Sweet thanks! I actually have a Ampharos that's pretty low but I think I can level him up

Even after you remove Beartic, you'd still be pretty weak to fighting due to having two dark-types on your team; I'd recommend replacing either Scrafty or Krookodile with Metagross. It would be weak to fire, but Jellicent could have its back and take care of that. :]

So I guess update on my team... I've been able to raise the level of my Jellicent to lvl 53 (hydro pump) and my Krookodile lvl 52. I also have leveled up a Galvantula (took so damn long) to lvl 50. I can switch out my Scrafty I guess but he is the highest level I have.

Galvantula has electro ball and electroweb as electric type moves. Should I switch those out for something?
Just a random occurrence, I somehow got my Zweilous up to lvl 56 so should I switch him in?

Thanks guys for all your help! I really want to just beat the elite four up and then move on.

So here is my finished crew:
Lvl 52 Krookodile
lvl 50 Metagross
lvl 50 Galvantula
lvl 51 Flygon
lvl 53 Jellicent
lvl 50 Volcarona

I'm trying to sweep it so I don't have to loose money so if this doesn't look good please let me know :P

Ok, a bit of a wrinkle. I would like to throw in Hydreigon into the mix because I just got him and he is the highest level pokemon I have now. Could I get rid of Flygon?

A hydriegon can destroy the E4 because its lv 64

So I tried to the Elite four twice and I lost at the end to the champion. All my pokemon seemed to just not to be able to hit very hard against her and I lost against Hydreigon. I guess this might be move related or level related. Most of my pokemon are now above 50 tho so I'm unsure why that would be a problem and I have a lvl 66 hydreigon who sweeps through the whole elite four. Can someone maybe help me with understanding when I should put out specific pokemon in my team? I think I have the final team I use up above except hydreigon in for Krookodile. Also, I'm playing black 2 just in case that changes anything.