I have been a long term Canon user and i have used the following cameras
EOS 500/n x2
EOS 630 x2
EOS 10 and 100
EOS 5 x3
EOS 1n RS
EOS 300 x2
I would avoid any model before the EOS 5 like the plague - Sticky shutters.
The exotic EOS 1n RS left me unimpressed. Huge and loud. Squinty and dark viewfinder. I sold it.
The EOS 50 was alright. Never tried the EOS 30 but they say it is good.
This leaves you with either the EOS 5 or the EOS 3000v. Want cheap and small - try the 3000v. The EOS 5 is my personal best - i sold the EOS 1n and kept the 5. Deadly silent - always delivered.