From what I'm learning of melee,Sirus's seems to be pretty solid advice. And I can vouch that even a really nice mare does die fast if it gets targeted. Mine is a 3.9 fully trained and it croaks super fast. Lame, but whatever, thems the breaks.
Cu's are nice and I support his suggestion. If you go with a melee, carry bolas to dismount. PVP is annoying because people either do massive damage or they run away. You gotta be able to stop or slow them down. If you go archery you can rely on a heavy for dismounts.
I have been on this sampire trip lately and did some thinking, How can I tweak my tamer and merge with Sampire and make more fun?
I came up with this template, untested. Relies on imbued jewels heavily, check it
Ring/Brace set 1: +26 Bush, +26 Tactics, +26 Taming
Ring/Brace set 2: +26 Vet, +26 Tactics, +26 Taming
Why 2 sets of jewels? You will see soon. One set is your "attack mode", the other is "pet support mode". Easily switchable with 1 key press in EC, or possibly UO assist in CC. Also you would switch out totem of the void for the Birds of brit taming talisman when you switch to vet jewelry. You will not need Bushido if you're ever vetting your pet so the fact they are in the same imbuing skill group is actually really handy.
Archery: 120 (+20 from Hunters' Headdress)
110 Tactics (+26 from Jewels)
80 Vet (+26 from Jewels in support mode- just enough to res)
99 Necro
120 Bushido (+26 from jewels)
75 Chiv
120 Taming (+26 from jewels, +5 from Birds of Britania talisman)
110 Lore (+5 from birds of brit talisman)
This seems a fun template to play, the holes are the mana regen and resists
I was gonna go imbue items on test to see how well it worked.
If the sampire part of you is tanking, and lifetapping to keep you alive, theoretically you shouldnt need to really be healing pet since it is just supplemental damage.