@Zylo Which video? Also, coincidentally, I'm doing CS with a telezerker.
So, thoughts on CS with berserk, keeping in mind I'm basically running this with a MF set-up:
A shield is only really necessary if you need it for resists, as the main threat is Mr Seis. I can never remember whether or not anything he does is blockable, but I imagine a 2h weapon would have an easier time keeping him pinned down and in hit recovery so that would compare somewhat favourably if anything were blockable.
A stormshield is helpful overall, of course, and can free up other gear/inv slots for MF options or what have you, but not necessary. I would however be somewhat concerned with using a 2H depending on the weapon speed/frames. You can gear around it, of course, but some weapons might ask too much IAS of you to your liking when you consider decrep or holy freeze.
Fabian's skills set-up for his pit running telezerker works great with a couple of modifications, namely: get leap, and battle cry, and no need for double swing if going 1h/shield or 2h, of course. Leap attack is marginally useful for killing a fleeing Seis from time to time but it can be skipped, leap is the important one for clearing you some space as CS is very often remarkably claustrophobic when you aren't killing much.
Titaning: I'm split pretty evenly between str and vit with 300VIT and 325STR after gear, running at ~2700life and that feels safe enough, but like i'm occasionally doing a bit of gamling with Seis's dps when he rolls bad mods. Having more than 1 point in BO and better vita charm options than I do would certainly allow one to put a fair number more points into str than I do atm. (most of my good fine/sharp charms are of STR rather than life, so I lose out on some efficiency there).
I previously rand with ~500 and ~700 less life and it was fine for everything but every now and then Lord de Seis would spawn with the wrong mods in the wrong spot (unable to reasonably separate him from the pack, or a significant OK population in the area), and there was definitely some nearly-instant-death potential.
So I would say no low life as a melee in CS isn't really a thing, but low vita could potentially be depending on BO skill level, and how much life from dps/resist charms you can get.
EXP: It's alright. I worked out it'd take roughly 1000 runs for 95-96 +- depending on extra uniques/champs I kill. How efficient it is vs other areas depends on your run times. I'm averaging about 2m runs at a pretty comfortable pace (not pushing/rushing myself too much), or 100,000xp/m +-10,000 here and there depending on which base monster type gets unique-ified. That's with some fairly rough/rounded/averaged math and eyeballing my exp numbers, though, nothing super exact, and not counting any exp shrines. And a habit of rounding down because I'd rather over-estimate and be pleasantly surprised, than underestimate and be sad.
I have no doubt Baal+WW is faster xp, and worse MF.
MF: I treat my CS runs like a mix between exp runs and MF runs, in both gear and playstyle. I don't hunt down every bosspack that spawn in the area, but on my way to the seals I will stop to kill any I find along the way that won't take too long to kill+hork. This mostly means I'll skip the occasional extra-obnoxious OK unique/champion-pack, and the odd unique/champions that is too crowded to howl clear quickly. So far, with my current map, I've never had less than 3 extra bosspacks that I will stop for, so, the bare minimum is:
6 boss packs + act boss @ 2m/run (not sure what the real average is tbh, but 5+3 isn't uncommon)
That almost certainly beats my personal efficiency in the pits MF wise depending on how one converted diablo into bosspacks per second, because playing at fabian or gripp speeds is beyond me. And the xp is of course faster than in pits.
All that said, I think it's a pretty fun character+place to run, that strikes a nice balance between MF efficiency (where pits wins) and EXP (where baal with WW wins).