Opinions on my Machamp, Exeggutor and Tyranitar
IVs are A-D-S, Level is 38
Would you CTM the 15-13-11 KC-Machamp? (got a lot Candy and L-20-Machamps with C-DP/C-CC, because i solo-raid them)
Now with Exeguttor gone as Raidboss:
Would you TM any of my Exeggutors? My best/highest ones all have Seed Bomb
Tyranitar 11-05-14 Bite - Stone Edge? where do i have to take him, maximum? my 14-15-13 Bite-Crunch one is waiting for a Ex-Raid Invitation to be pushed. No luck with the raids so far...

Answers
Lots of fighting types? There's 3 potentially viable ones and their stats aren't ridiculously better than Machamps to say that they'll outclass him.
Medicham's stats make it unviable and the 2 that have comparable attack to Machamp, Blaziken and Breloom have worse stamina and defence, so unless they get overpowered moves they aren't going to out-damage a Machamp.
Hariyama will most likely beat Machamp in total damage dealt but you can still lead with Machamps in raids to maximise your DPS, so Machamp is still going to be useful in gen 3.
Both Top Eggs need Solarbeam, not really much debate there. I'd FTM ZHB to BS.
I'd personally abandon the top TTar and work on the second but I'd prioritize TTar raids above all else. All should learn bite and split SE and Crunch but crunch on your best ones for now.
I'd raid more champs and settle on the 14-14-14 if you don't get a better one for your next maxed champ.
Just my opinion dust targets are more plentiful than dust. Be picky from here on out.