Would you take advice from someone who focuses on assaults? Good assaults are made of two things.
First: speed. Thats it. That is what you want when playing assault mechs. While extra tonnage gives you access to powerful engines, your are generaly slow. Cliché, I know, but please realise that when droping solo you depend heavily on your team and players around you to cover you and provide both fire support and more targets for the enemy to shoot at. The worst thing is lone assault. Too slow to run away, too big to be missed. And at speed below 60 kmph, your tam will simply run away from you. You can shine and put your extra tonnage to good use, but you need people around you so that you can do your job. 60 kmph is minimum you should aim for, perhaps some 57 kmph for atlas, but don't go lower because you would need a group of friends to stick with you and that simply doesn't happen in random battles.
Second: weapons. This is your strength. Not armor, weapons. You need hardpoints to have both boomsticks and suistainable DPS.
Atlases can be relatively fast and pack incredible punch, and Stalkers with some sacrifices (arms) even more so. Highlanders are very close to Atlases with some serious advantages (JJs mostly), and Victors are very agile while still packing quite a punch and also have some incredible builds (1k dmg with 3x AC2 Victor today, yay!). Awesome is the biggest problem here. If you look at the armaments, this mech has some role issues. It has speed, but its punch is lacking. You can pack it with the most cheesy stuff you can find, but it will still be barely competitive.
I didn't mention the armor so far. The truth is assaults have as much armor just to stay competitive, it is not their strength. In real battle assaults are huge, slow, hard to miss. He who decides to core you will manage simply due to you sheer size. In some cases assaults are more vulnerable to damage than mediums due to lack of their ability to escape and avoid fire. Allways have your torso armor maxed, but don't depend on it to save you when things get ugly. You have guns and you must be in place to use them, nothing more, nothing less. With that in mind, I would recommend the Victor mechs. They can be fast, brawlish, sniping, jump sniping, LRM boating machines. While Victor can't compete with Stalker in the weaponry department, it doesn't even have to. You will have enough versatility to customize your assault in any way you like while still having all qualities to make your mech a good assault. On the other hand if you wish to really know what assaults are about and don't mind lacking ballistics, go for stalkers. All disadvantages like subpar agility are only matter or time to get used to your mech. Either way, you will need a lot of time to get used to this rather specific class. These mechs will reward you with a lot of fun, but you have to learn how to treat them.
Edited by Mordin Ashe, 09 October 2013 - 12:43 PM.