Definitely Swampert. It only has one weakness, ice which can be beaten with a super-effective hammer arm and Blastoise has only one type and not nearly as diverse a move set. Plus, Swampert is so dang cool and good at battle frontier and gyms.
you should have a sizor and a swampert because they have only one weakness and are strong
swampert ex is super rare
Swampert does not evolve. Marshtomp evolves into Swampert at lv.36
marstomp evovles into swampert at lvl 36
Swampert is a Water and Ground type pokemon.
You are not able to change the lineup in battle arena (battle frontier). What they play is partially strategy as well as you are advised to have tactics in lining. For instance like me, I use Swampert (ground and water) followed by Swellow (not a good flying but can help against Swampert's weakness) and then a Magneton (an extra just in case...).
Swampert, just by a tiny bit. Hope I helped! :)
No, you cannot because Swampert cannot be taught Cut.
Mudkip's final evolution is Swampert. Mudkip evolves to Marshtomp at level 16, who evolves into Swampert at level 36.
Second Evolvence is Mashstomp. Third Evolvence is Swampert. Mudkip to Marshtomp to Swampert. My Swampert is Level 63, 235 hp
Pick Swampert.