I'm inclined to say my best was the Apogee Duetta II speakers I bought in 1988 and had refurbished a few years ago.  How many audiophiles can be satisfied with the same speakers for 35 years? 

Shortly thereafter I bought my Classé Audio DR-7 preamp, which may even be better and remains the preamp in my main system.  It's dual-mono--left and right volume knobs, no balance knob--and uses an array of discrete resistors instead of potentiometers for the volume controls.  It also has a knob which can select stereo, mono, reverse stereo, right-channel-only or left-channel-only--very useful for troubleshooting and for musicians such as myself.

Mine wasn’t my endgame system but my first system a pair of Monitor Gold 200 and a Naim integrated amp.

My system now is similar in only I still believe an integrated is the way to go!

Mola Mola Kula integrated 

Lampizator Baltic DAC highly modified with VCaps, Audionote caps and resistors.

Auralic Ares G2.2 streamer

kubala Sosna realization cable loom

2 JL Fathom F212 subwoofers and one Jenson iso-max transformer

to hook it up to the Kula in a crazy way!

degiter internet switch.

10 stillpoints aperture panels for room treatment.

AUDIO GD HE 1 VACUUM TUBE PREAMP WITH REGENERATIVE POWER SUPPLY. This is the Best value in Hi-Fi today. What a masterful sounding piece of gear. I love mine. 

Ansuz Ethernet Switch A2.

Xavian Perla Esclusiva Speakers, around $2000, very musical and scale up nicely with the upgraded equipment.