All About Storm Summoning/Sonic Blast Defenders
Pros
Pinning enemies into a corner. They are helpless at this point.
My first level 50 character was Jordan, a D3 Defender. I figured playing another defender would be very similar, and it is to a degree, but it's also very different. For example, Gale only has one heal like Jordan did, but she can use it any time (instead of needing an enemy target). On the other hand, it only affects other players (not me).
Anyway, Storm powers are about speed and location. You can slow enemies down, make them fall, and push them around. Sonic is neat because every attack lowers their damage resistance against everything making your team's powers more effective every time you scream.
Cons
Defenders are mostly about altering the battle. You have debuffs, buffs, heals, and stuff that knock the enemies all over the place. These are powerful, interesting, and useful, but hard to control. It takes time to learn and use your powers well enough not to piss off your team members.
For example, a Storm/Sonic Defender has tons of Knockback (unless you try very hard to avoid all the powers that have this), but most teams hate Knockback. Most teams don't realize that you can boot runners back into the herd, pin enemies in the corner, and save a team from a wipe. Because you have one little heal, you have to train anyone who doesn't understand Defenders that you are not a "healer".
Sonic can be very powerful in that it reduces resistance making subsequent attacks more effective. However, as a Defender, you're still very weak compared to most other ATs.
Summary
I play a Defender because of the wide variety of things they can do in battle. You can fight, you can support, you can control. Because of you, your team can take on groups of enemies at levels far to hard otherwise. But more than anything, what makes Storm/sonic fun is playing it in a way that no one has seen before. Because of the strong theme of powers and story, Gale is one of my all-time favorite characters 
Read on…
Pros
My first level 50 character was Jordan, a D3 Defender. I figured playing another defender would be very similar, and it is to a degree, but it's also very different. For example, Gale only has one heal like Jordan did, but she can use it any time (instead of needing an enemy target). On the other hand, it only affects other players (not me).
Anyway, Storm powers are about speed and location. You can slow enemies down, make them fall, and push them around. Sonic is neat because every attack lowers their damage resistance against everything making your team's powers more effective every time you scream.
Cons
Defenders are mostly about altering the battle. You have debuffs, buffs, heals, and stuff that knock the enemies all over the place. These are powerful, interesting, and useful, but hard to control. It takes time to learn and use your powers well enough not to piss off your team members.
For example, a Storm/Sonic Defender has tons of Knockback (unless you try very hard to avoid all the powers that have this), but most teams hate Knockback. Most teams don't realize that you can boot runners back into the herd, pin enemies in the corner, and save a team from a wipe. Because you have one little heal, you have to train anyone who doesn't understand Defenders that you are not a "healer".
Sonic can be very powerful in that it reduces resistance making subsequent attacks more effective. However, as a Defender, you're still very weak compared to most other ATs.
Summary
I play a Defender because of the wide variety of things they can do in battle. You can fight, you can support, you can control. Because of you, your team can take on groups of enemies at levels far to hard otherwise. But more than anything, what makes Storm/sonic fun is playing it in a way that no one has seen before. Because of the strong theme of powers and story, Gale is one of my all-time favorite characters Read on…