There was a post a while back about someone asking about this. And quite frankly I didn't like some of the responses and no one had any real numbers. First off lets look at the descriptions:
Dodge & Death:
Reduces the dodge chance of your targets while they are under the influence of Time Shift. Also increases the initial damage of clock drop.
Time Bomb:
Your magical clock explodes when it expires, damaging all foes nearby.
My testing strategy involved the following:
1) Test Time shift without either of these upgrades and record the damage done on clock drop
2) Add Dodge & Death and record the damage done on clock drop
3) Add Time Bomb and test damage on clock explode
All my tests were on non-elite Krunch in Dead City. He has a lot of HP and you can reset him easy to start your tests over. Here is the damage numbers from my tests:
Uncharged Time Shift - No upgrades
1. 1049
2. 1149
3. 1097
4. 1026
5. 1005
Charged Time shift - No upgrades
1. 957
2. 1139
3. 1156
4. 1067
5. 1111
Uncharged Time shift - Dodge & Death
1. 1467
2. 1353
3. 1349
4. 1211
5. 1363
Charged Time Shift - Dodge & Death
1. 1268
2. 1418
3. 1298
4. 1212
5. 1378
Uncharged Time shift - Time Bomb
1. 840
2. 840
3. 840
4. 840
5. 840
Charged Time Shift - Time Bomb
1. 840
2. 840
3. 840
4. 840
5. 840
These tests were done without any pet and my gear is full mythic. My damage is 387.9 (full int, 5/5 int, 5/5 dex, 5/5 damage passives). So from what I see I was getting about +300 damage from Dodge & Death. Where as Time Bomb was consistently giving me 840 damage. So if you are deciding between these 2, I think you need to look how you are using Time shift. Death and Dodge may give more damage because when you drop it, as there will probably be more mobs under time shift then at the end. Also Dodge & Death works better on bosses which tend not to be stationary. If you have a lot of mobs under Time shift when time bomb goes off then you're going to do more damage this way. Or if its a boss thats mostly stationary. Also what I noticed is that if you factor crit in, you do more damage with Dodge and Death where I never got a crit damage with Time Bomb. And of course there is nothing stopping you from using both upgrades.
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