I find that all the brands have stars and duffs
My own (??blinkered view)
Purely subjectively(IMHO)
Sony : usually a bit more expensive but having owned and used a high end Digital 8 ,VX2000 and 2100,FX1 and now HC1 (all admittedly not "budget") I have to say, Sony makes really good camcorders. I say this grudgingly as I dont really like Sony as a company and have made a point of not buying any other electronics from them (... again) . Sony stuff seems consistently overpriced ( with the exception it seems of the new HC3 HDV camcorder )

Oh.. I like thier miniDV tapes too
Canon:Used Xl1 Mx2 and a smaller one whose model no I forget : great camcorders but of course the MX2 and xl1 are hardly pocket money prized . Canon seem to get mixed reviews in the press especially with the budget models having rather noticable motor noise by some not everybody eg (MV960) . There is ( in these forums) also a very long thread on the MV 600 : it seems to have upset many owners
Panasonic Ive owned at various times : Mx350, 500 and GS 400 : £1000+ 3 ccd camcorders : all very well specced and mainly a joy to use: Value for money

Well deserved good press reviews
JVC: Ive only used one from my brother in Law and have a "knock about" GR-DV7000EK both of whose performance underwhelmes me. I really mainly use mine now just to transfer miniDV footage to PC
I think in the budget to mid range I find JVC playing catchup with the other "names"
I was rather more impressed with JVCs HDD camcorder:

which I had for a week, than the budget miniDV models
This is all subjective of course but it is a brief account of impressions from my "camcorder history" in the last 6 years